Borden, J.
The dispositive issues in this appeal are whether: (1) General Statutes § 45a-717 (f) (2)1 permits [495]*495the termination of the parental rights of the mother of an infant based upon the mother’s prenatal conduct of injecting cocaine; and (2) General Statutes [496]*496§ 45a-717 (f) (3); see footnote 1, supra; as applied to the facts of this case, permits the termination of the same parental rights upon the basis of an absence of an ongo[497]*497ing parent-child relationship between the mother and the infant. The respondent mother2 appeals, upon our grant of certification, from the judgment of the Appellate Court affirming the judgment of the trial court that granted the petition of the commissioner of children and youth services (petitioner) for termination of the respondent’s parental rights with respect to her daughter, Valerie D. (child).3 The trial court judgment rested on two alternative bases: (1) certain prenatal conduct of the respondent, namely, intravenous injection of cocaine, caused “serious physical injury to [the] child” that constituted “acts of parental commission or omis[498]*498sion sufficient for the termination of parental rights,” within the meaning of § 45a-717 (f) (2); and (2) there was “no ongoing parent child relationship” between the respondent and the child, and “to allow further time for the establishment . . . of [such] parent child relationship would be detrimental to the best interests of the child,” within the meaning of § 45a-717 (f) (3).
The respondent claims that the judgment of the Appellate Court should be reversed because: (1) § 45a-717 (f) (2) does not permit termination of parental rights based upon the prenatal conduct of the mother; (2) if § 45a-717 (f) (2) does permit such a termination of parental rights, it violates the respondent’s right to due process of law and equal protection of the laws [499]*499under the federal and state constitutions; (3) under the facts of this case, the termination of the respondent’s parental rights upon the basis of an absence of an ongoing parent-child relationship was unconstitutional because the state was responsible for the absence of such a relationship; (4) the record does not support the finding of the trial court that there was no ongoing parent-child relationship; and (5) the trial court used an improper standard in waiving the one year requirement provided by § 45a-717 (f)4 and no such waiver was justified under the facts of this case. We agree with the respondent’s first claim, namely, that § 45a-717 (f) (2), properly construed, does not permit termination of parental rights based upon the mother’s prenatal conduct. With respect to the respondent’s third claim, we agree that § 45a-717 (f) (3), as applied to the facts of this case, does not permit the state to terminate the respondent’s parental rights upon the basis that she had no ongoing parent-child relationship with her child, but we reach that conclusion by virtue of statutory interpretation rather than constitutional analysis.5 Accordingly, we reverse the judgment of the Appellate Court.
The child was born to the respondent on July 26, 1989, in Bristol Hospital. On August 1, 1989, while the child was still in the hospital, the petitioner filed in the Superior Court: (1) a petition for an order of temporary care and custody of the child, pursuant to General Statutes § 46b-129 (b),6 upon the basis of an affidavit of the [500]*500child’s pediatrician that the respondent’s use of cocaine within hours prior to beginning labor put the child “in great risk of life-threatening medical complications” [501]*501and that this conduct constituted “intentional and severe parental neglect”; (2) a petition for commitment of custody of the child to the petitioner, pursuant to [502]*502§ 46b-129 (a); see footnote 6, supra; upon the bases that the child was neglected, uncared for and abused; and (3) a coterminous petition for termination of the respon[503]*503dent’s parental rights with respect to the child, pursuant to General Statutes § 17a-112 (e),7 upon the basis that, due to the respondent’s use of cocaine throughout the pregnancy resulting in the child having been born “drug addicted” and “suffering from with[504]*504drawal,” the child “had been denied by reason of act or acts of commission or omission, the care, guidance or control necessary for [her] physical, educational, moral or emotional well being,” and that she had “sustained a nonaccidental or inadequately explained serious injury.” On the same date, the trial court granted, ex parte, the petition for temporary custody.8 On October 4, 1989, the petitioner amended the petition to add, as grounds for termination of parental rights, abandonment and a lack of an ongoing parent-child relationship.9
The trial court heard evidence on the coterminous petitions for custody and termination of parental rights on November 8, 1989, December 13, 1989, January 17, 1990, and February 21, 1990. On March 28, 1990, the court rendered an oral decision from the bench granting the coterminous petitions.10 With respect to the petition for termination of parental rights, the court found proven by clear and convincing evidence that: (1) by the respondent’s intravenous use of cocaine in the last stages of pregnancy, the child had been denied by reason of acts of parental commission or omission the care, guidance or control necessary for her physical, educational, moral or emotional well-being; and (2) as of the adjudication date of November 8, 1989, there was no ongoing parent-child relationship between the respondent and the child, and it would be detrimental to the child’s best interest to allow further time for [505]*505such a relationship to be established.11 Having considered the statutory factors listed in § 45a-717 (h); see footnote 1, supra; and all the circumstances leading up to the dispositional date of February 21, 1990, which was the last date of the evidentiary hearings, the court found by clear and convincing evidence that it was in the child’s best interest to be placed forthwith in permanent adoption. Accordingly, the court terminated the respondent’s parental rights and appointed the petitioner as the child’s statutory parent for the purpose of placing her in adoption. On July 24, 1990, the trial court issued a written articulation of its oral decision.
The Appellate Court affirmed the judgment of the trial court. In re Valerie D., 25 Conn. App. 586, 595 A.2d 922 (1991). That court held that: (1) a judgment of “termination of parental rights can be supported solely by evidence of a mother’s prenatal conduct”; id., 593; and (2) there was sufficient evidence to support the trial court’s findings that there was no ongoing parent-child relationship between the child and the respondent, and that it would be detrimental to the child’s best interest to allow further time for the establishment of such a relationship. Id., 594A-95. This appeal followed.
I
The respondent claims first that § 45a-717 (f) (2), properly construed, does not permit the termination of parental rights based upon the prenatal conduct of the mother. We agree.
The record discloses the following facts pertinent to this claim.12 The respondent, who was born August 4, 1969, began using drugs at age eleven. At age fifteen [506]*506she met the child’s father, John M., and at age sixteen she left school and home and began living with him. Thereafter, they both began injecting cocaine intravenously. In 1987, the respondent became pregnant with her first child, Amanda. When, during the fourth month of pregnancy, she disclosed her history of drug abuse to her physician, he warned her of its impact on her unborn child and gave her literature on the subject. She was able to discontinue the use of cocaine almost completely during that pregnancy, and Amanda was born, symptom free, on May 12, 1988. Three months later, however, she resumed using cocaine, by smoking and intravenous injection, two to five times per week.
In October, 1988, the respondent became pregnant with Valerie, but did not visit her physician until March, 1989, when he again warned her of the problems that her substance abuse could cause to her unborn child. By this time, however, the respondent had become addicted to cocaine and was unable to stop using it. Although the respondent informed her physician that she would continue prenatal care at the Bristol Hospital clinic because she had no medical insurance, her physician learned in July, when the respondent returned to him, that she had not gone to the clinic until June 5, 1989. The court further noted that, under normal circumstances, a pregnant woman should be seen monthly for the first twenty-eight weeks, and more frequently for a high risk pregnancy posed by a drug-abusing woman.
On June 19, 1989, John M.’s probation officer visited the home, where he observed marijuana and drug paraphernalia. Both parents were arrested. Amanda [507]*507was taken to Bristol Hospital, and the parents were advised to place her in foster care while they entered treatment for their admitted cocaine addiction. A hospital social worker advised the respondent of the risks to a fetus from intravenous cocaine use. After the parents refused voluntary placement of Amanda and drug treatment for themselves, the petitioner filed a neglect petition regarding Amanda and secured an order of temporary custody in order to remove her from the hospital and place her in foster care.
On July 26, 1989, when the parents were scheduled for a continued hearing on the neglect petition regarding Amanda, they telephoned and informed the court that the respondent’s water had broken, that she was about to deliver and that they were on their way to the hospital. Instead, at approximately 1 p.m., the respondent intravenously injected a quarter gram of cocaine and did not arrive at the hospital until approximately 9 p.m. The child was born approximately one hour later.
During the birth process, the child had passed meconium;13 this was the result of stress to the child from a precipitous delivery that resulted, in turn, from the respondent’s injection of cocaine while she was leaking amniotic fluid and expecting to go into labor. In such a case, there is a risk that the child can aspirate the meconium, causing life-threatening respiratory problems. An aggressive suctioning procedure was used to guard against that risk, and it was found that the child had not aspirated any meconium.14
[508]*508At birth the child was pale, had poor muscle tone and required oxygen. While the child was in the hospital, cocaine metabolites were found in her urine, and she [509]*509went through cocaine withdrawal. At times, she was extraordinarily jittery and shaky, had a piercing cry, was unable to make eye contact, and required special care, such as swaddling, vertical rocking and elimination of all stimuli.
The petitioner argues that “[a]s a result of the mother’s intravenous injection of cocaine when on the verge of labor, the child was born into this world under life-threatening circumstances.” This argument is based on the testimony of the pediatrician that the passage of meconium prior to delivery posed a risk of aspiration that, had it occurred, would have caused life-threatening respiratory problems.
The petitioner also argues that “the child was seriously affected at birth by her mother’s cocaine use.” (Emphasis in original.) The following evidence forms the basis of this argument. The presence of the meconium, the child’s respiratory distress, and the precipitous delivery were caused by the respondent’s cocaine use. The child’s heart rate had fallen just prior to delivery, and she was born cyanotic, required oxygen, and had depressed Apgar scores, an “evaluation of a newborn infant’s physical status by assigning numerical values (0 to 2) to each of five criteria: heart rate, respiratory effort, muscle tone, response to stimulation, and skin color; a score of 10 indicates the best possible condition.” Stedman’s Medical Dictionary (24th Ed.). The child’s urine indicated the presence of cocaine metabolites, and she went through withdrawal. Fur[510]*510thermore, there was evidence that cocaine restricts the blood vessels, and may interfere with mental development. There was also evidence that prenatal drug abuse may ultimately result in learning disability, central nervous system damage, lens deformities, hyperactivity, and an increased risk of sudden infant death syndrome.
We need not decide in this case whether this evidence would support a finding of “serious physical injury to a child” within the meaning of § 45a-717 (f) (2), if the parental conduct that yielded these conditions and risks had taken place immediately after, rather than before, delivery. We assume that it would support such a finding, particularly where the child is a newborn infant, and we treat this case accordingly.
Based upon this evidence, the trial court rendered an adjudication, as of November 8, 1989, the date that the petition had been last amended; see footnote 9, supra; that the child had been denied “by acts of parental commission or omission the care, guidance or control necessary for physical, educational and emotional well-being.” The court specifically found that there had been “ ‘[n]onaccidental . . . serious physical injury to [the] child . . . constituting] . . . acts of parental commission or omission sufficient for the termination of parental rights.’ ” See General Statutes § 45a-717 (f) (2). In support of this conclusion, the trial court reasoned: “Valerie suffered serious, life-threatening, physical injury at the instant of her birth because of her mother’s intravenous injection of cocaine after beginning labor. This ground would apply without question to parents who., an instant after birth, injected cocaine into the bloodstream of a newborn. The injection of the drug into the bloodstream of a baby about to be born should have no different consequences.” (Emphasis in original.) It is the validity of this conclusion that forms the core of the first issue in this case.
[511]*511It is important to note at the outset what this case does not involve. It does not involve the propriety of the trial court’s order committing custody of the child to the petitioner. The respondent has not challenged that order at any time during the entire course of this litigation. Moreover, “questions concerning the ultimate custodial placement of the child may not be intermingled with the issues of termination.” In re Jessica M., 217 Conn. 459, 466, 586 A.2d 597 (1991). Nor does this case involve a determination of whether it would be in the child’s best interests to terminate the respondent’s parental rights in order to substitute another, more suitable parent. Our statutes and caselaw make it crystal clear that the determination of the child’s best interests comes into play only after statutory grounds for termination of parental rights have been established by clear and convincing evidence.15 We also note that we do not endorse the moral quality of the conduct of the respondent in this case. Certainly no one approves of the intravenous injection of cocaine by a pregnant woman, who had been warned of the risks to her fetus, at any time during her pregnancy let alone just before the onset of labor. Nor, on the other hand, are we here to condemn her for succumbing to what may well have [512]*512been the unyielding demands of her addiction; Our task, rather, is to determine whether the legislature, in enacting § 45a-717 (f) (2), intended it to apply in a case such as this. We do not believe that it did.
Section 45a-717 (f) (2) provides, in pertinent part, that the court may approve a petition for termination of parental rights “if it finds, upon clear and convincing evidence that . . . the child has been denied, by reason of an act or acts of parental commission or omission, the care, guidance or control necessary for [the child’s] physical, educational, moral or emotional well-being. Nonaccidental or inadequately explained serious physical injury to a child shall constitute prima facie evidence of acts of parental commission or omission sufficient for the termination of parental rights . . . .” See footnote 1, supra. It is axiomatic that the process of statutory interpretation involves a reasoned search for the intention of the legislature. Lauer v. Zoning Commission, 220 Conn. 455, 459-60, 600 A.2d 310 (1991). The question posed by the facts of this case is whether the legislature intended this language to contemplate termination of parental rights based upon prenatal conduct—even prenatal conduct committed shortly before the onset of labor—that results in harm to the child upon its birth.
The scope of this statute is ambiguous when applied to the facts of this case. The statute rests on “two distinct and often contradictory interests [of the child]. The first is a basic interest in safety; the second is the important interest ... in having a stable family environment.” (Emphasis in original.) In re Juvenile Appeal (83-CD), 189 Conn. 276, 287, 455 A.2d 1313 (1983). Indeed, the petitioner concedes with appropriate candor that the “statute is silent as to when the [parental commission or omission] must occur.” In light of this ambiguity, we must examine the constitutional background, the language and the structure of the stat[513]*513ute, as well as the legislative history relevant to its meaning. Lauer v. Zoning Commission, supra, 460. These well settled principles of statutory construction constrain us to conclude that the parental conduct justifying termination of parental rights pursuant to § 45a-717 (f) (2) must occur after birth and that the statute does not contemplate termination of parental rights upon the basis of prenatal conduct.
“[T]he termination of parental rights is defined, in General Statutes § 45-61b (g) [now § 45a-707 (g)], as the complete severance by court order of the legal relationship, with all its rights and responsibilities, between the child and his parent . . . . It is, accordingly, a most serious and sensitive judicial action. Anonymous v. Norton, 168 Conn. 421, 430, 362 A.2d 532, cert. denied, 423 U.S. 935, 96 S. Ct. 294, 46 L. Ed. 2d 268 (1975). Although the severance of the parent-child relationship may be required under some circumstances, the United States Supreme Court has repeatedly held that the interest of parents in their children is a fundamental constitutional right that undeniably warrants deference and, absent a powerful countervailing interest, protection. Stanley v. Illinois, 405 U.S. 645, 651, 92 S. Ct. 1208, 31 L. Ed. 2d 551 (1972); see also In re Juvenile Appeal (83-CD), [supra, 295] (noting that it is both a fundamental right and the policy of this state to maintain the integrity of the family). Termination of parental rights does not follow automatically from parental conduct justifying the removal of custody. The fundamental liberty interest of natural parents in the care, custody, and management of their child does not evaporate simply because they have not been model parents or have lost temporary custody of their child to the State. Even when blood relationships are strained, parents retain a vital interest in preventing the irretrievable destruction of their family life. Santosky v. Kramer, 455 U.S. 745, 753, 102 S. Ct. 1388, [514]*51471 L. Ed. 2d 599 (1982).” (Internal quotation marks omitted.) In re Jessica M., supra, 464-65.
Thus, in construing § 45a-717 (f) (2), which operates “in the delicate realm of parent-child relationships, courts should prefer that construction which minimizes state intervention. ...” (Internal quotation marks omitted.) In re Juvenile Appeal (Anonymous) v. Commissioner of Cildren & Youth Services, 177 Conn. 648, 662, 420 A.2d 875 (1979). In this realm, therefore, § 45a-717 (f) (2) should be read with a “preference for nonintrusion” by the state. Id. Because of their “fundamental nature,” statutes “authorizing state intrusion into the area of parental rights” require “the strictest level of judicial scrutiny.” In re Juvenile Appeal (84-BC), 194 Conn. 252, 257 n.9, 479 A.2d 1204 (1984); see also In re Juvenile Appeal (88-CD), supra, 284 (courts must keep in mind constitutional limitations imposed on state when it undertakes coercive intervention in family affairs).
Strict construction of a statute permitting the termination of parental rights is consistent with our traditional “[insistence upon strict compliance with the statutory criteria before termination of parental rights and subsequent adoption can occur [and] is not inconsistent with concern for the best interests of the child.” (Internal quotation marks omitted.) In re Jessica M., supra, 466.16 In sum, in light of the ambiguity and uncertainty regarding the scope of § 45a-717 (f) (2), as applied to the facts of this case, the statute must, con[515]*515sistent with its constitutional implications, be construed strictly and narrowly, rather than generously and broadly.
With this background in mind, we turn first to the language of the statute in order to determine whether the legislature intended it to encompass prenatal conduct. For purposes of § 45a-717, “ ‘[p]arent’ means a natural or adoptive parent.” General Statutes § 45a-707 (e). “ ‘Child’ means any person under sixteen years of age.” General Statutes § 46b-120.17 The ordinary usage of the term “parent,” insofar as it applies to the female, suggests that, unless the context requires otherwise, it means “one [who] . . . brings forth offspring.” Webster’s Third New International Dictionary. Thus, in ordinary parlance, until the child in this case was born, or was “brought forth,” the respondent was not her “parent” and the conduct of the respondent with respect to her was not “parental” conduct. Similarly, the definition of “child” as a person “under sixteen years of age” suggests a limitation on the applicability of that definition to a person who has been born, since that is the ordinary beginning point of one’s “age.” Thus, until the moment of birth, Valerie was not a “child” within the meaning of § 45a-717 (f) (2) and, therefore, the “act . . . of parental commission” that took place before that moment cannot be considered to be parental conduct that “denied [her] . . . the care . . . necessary for [her] physical . . . well-being.” Cf. Burns v. Alcala, 420 U.S. 575, 95 S. Ct. 1180, 43 L. Ed. 2d 469 (1975) (based on axiom that statutory words are to be given ordinary meaning [516]*516absent persuasive reasons to contrary, “child” as used in § 406 (a) of federal Social Security Act means individual already born, with existence separate from mother).
It is true, of course, that one can be considered, semantically, to be the “parent” of a child yet to be born; in such a case, the word “child” would be considered to include reference to an unborn child.18 It is also true that such a broad, rather than narrow, construction would favor the petitioner in this case. Faced with two plausible constructions of the statutory language, however, we are compelled by its constitutional backdrop to choose the narrow construction, and to limit the reach of the language accordingly.
We took the opposite approach in Crook v. Academy Drywall Co., 219 Conn. 28, 591 A.2d 429 (1991), where we held that, for purposes of the Workers’ Compensation Act, an employee was entitled to a dependency allowance for a child conceived before but born after the date of the employee’s injury. Id., 28-30. In that case, we rested our holding that a child en ventre sa mere was a child “ ‘under eighteen years of age,’ ” within the meaning of the Workers’ Compensation Act; id., 29 n.l, quoting General Statutes § 31-308b (1); on the established principle that the act “is remedial in nature and that it should be broadly construed . . . .” (Internal quotation marks omitted.) Id., 32. The established principles that govern construction of § 45a-717, however, require that it be read narrowly and strictly, and require further that, absent clear indication to the contrary from the legislature, it be read so as to apply only to postnatal parental conduct.
This conclusion is buttressed by the use of the terms “parent” and “child” throughout § 45a-717. Ordinar[517]*517ily we read the same terms in the same statute to have the same meanings. AirKaman v. Groppo, 221 Conn. 751, 758, 607 A.2d 410 (1992). The terms “parent” and “child,” as used throughout the other parts of § 45a-717 (f), clearly contemplate a child who has been born to his or her parents, and do riot contemplate prenatal conduct by a pregnant woman with respect to her fetus.
Section 45a-717 (f) (1), for example, permits termination of parental rights if “[t]he child has been abandoned by the parent,” and § 45a-717 (f) (3) permits termination if “there is no ongoing parent child relationship which is defined as the relationship that ordinarily develops as a result of a parent having met on a continuing, day-to-day basis the physical, emotional, moral and educational needs of the child . . . .” Neither of these statutory uses of the terms “parent” and “child” could conceivably involve prenatal conduct by a pregnant woman with respect to her fetus. It would, therefore, be inconsistent with the ordinary legislative use of the same or similar language within the same statutory section to permit that language to carry one meaning in one subsection but another meaning in the other two subsections. In the absence of a clear expression of an intention to do so, we will not ascribe such an intention to the legislature. Moreover, § 45a-717 (f) requires that the conduct of a parent justifying termination of her parental rights must continue “over an extended period of time which . . . shall not be less than one year,” unless the one year period is waived by the court pursuant to § 45a-717 (g). The legislature could not have intended that one year requirement, which applies uniformly to all three grounds for termination under § 45a-717 (f), to apply to grounds for termination that would be based upon prenatal conduct.
Finally, we obtain guidance to the intention of the legislature in its enactment in 1990 of certain legisla[518]*518tion addressing the question of how best to deal with the issue of substance-abusing pregnant women, and in the simultaneous rejection by the responsible legislative committee of certain other proposed legislation addressing the same question.19 Specifically, the 1990 legislature, by adopting Substitute Senate Bill No. 197 and rejecting House Bill No. 5205, evidenced an intent to approach that issue by a program of treatment and support, and an intent to eschew giving the petitioner the authority to seek termination of parental rights based upon prenatal drug abuse.
The joint committee on public health considered and held simultaneous hearings on two bills: (1) House Bill No. 5205; and (2) Substitute Senate Bill No. 197. A principal thrust of House Bill No. 5205 was to couple mandatory testing and reporting requirements of pregnant, drug-dependent women with mandated investigations by the department of children and youth services (DCYS) so as to give DCYS explicit authority to petition for termination of parental rights based upon the prenatal drug abuse by the mother.20 This bill, there[519]*519fore, would have specifically authorized what the petitioner seeks in this case.
Substitute Senate Bill No. 197 took a different approach to the issue of substance-abusing pregnant women. The principal thrust of this bill was outreach services, treatment programs, and other appropriate forms of support for pregnant substance-abusing women and their families.21 Conspicuously absent from this bill, when compared to House Bill No. 5205, were any provisions for mandatory testing and reporting, and any provisions regarding termination of parental rights.
[520]*520The joint committee on public health held a hearing on the two proposed bills. Much of the testimony in favor of House Bill No. 5205 pointed to the need for its mandatory reporting requirement, and on the consequent investigation by DCYS to be followed, where appropriate, by a petition for custody or termination of parental rights.22 On the other hand, much of the testimony opposed to House Bill No. 5205, and in favor of the contrary approach proposed by Substitute Senate Bill No. 197, focused on the perceived risk that the approach proposed by House Bill No. 5205 would drive pregnant women who have abused drugs during their pregnancies to avoid prenatal care and even hospital-based births.23
[521]*521The joint standing committee reported Substitute Senate Bill No. 197 favorably, and House Bill No. 5205 [522]*522died in committee. Substitute Senate Bill No. 197 was passed by the General Assembly with minor amendments, and is now codified in part at General Statutes § 17a-644.24 In speaking in the House of Representatives on Substitute Senate Bill No. 197, Representative Robert Farr stated: “As far as I’m concerned, we ought to change our laws and we ought to make it abuse for a mother to consume drugs while she’s pregnant. That’s what should be done. That would be instant intervention. That would mean reporting. I don’t think we’ve done much with this bill. Representative Dandrow is right. We’re not going to achieve anything further. Obviously with the lateness of the period, I think it’s a tragedy [that] we haven’t done more to change our laws. There’s a real problem out there. There’s a real epidemic. We haven’t even begun to scratch the [523]*523surface of the problem.” (Emphasis added.) 33 H.R. Proc., Pt. 26, 1990 Sess., pp. 9408-9409.
Based upon this entire legislative history, we conclude that the 1990 legislature, in rejecting House Bill No. 5205 and enacting in its stead Substitute Senate Bill No. 197, was persuaded by the policy arguments of the proponents of Substitute Senate Bill No. 197 and the opponents of House Bill No. 5205 that the provisions of House Bill No. 5205 entailed significant risks that pregnant women who had used illegal drugs during their pregnancies would avoid prenatal care and substance abuse treatment. We also conclude that the same legislature was persuaded that such an approach would on balance be more socially harmful than beneficial, because it would lead to more, rather than fewer, babies being born either without adequate prenatal care or damaged by prenatal drug abuse, or both.25 We are also persuaded that the 1990 legislature, in adopting the approach taken by Substitute Senate Bill No. 197, considered that it would require a change in the law in order to give DCYS the power to seek termination of parental rights on the basis of a mother’s prenatal illegal drug use.
These conclusions, while far from determinative of the issue, cast light on the legislative intent underlying § 45a-717. They disclose the difficult and delicate policy choices that are inherent in the provisions of House Bill No. 5205 that parallel the position of the petitioner in this case regarding the meaning of § 45a-717 (f) (2), policy choices that the legislature clearly rejected in 1990. These conclusions, therefore, counsel against reading § 45a-717 (f) (2) so as to reflect a resolution of [524]*524those policy choices that would balance in favor of the petitioner’s reading of that statute, at least without clear legislative indication of an intent to do so.
Furthermore, the legislature in enacting statutes is presumed to be aware of the existence of other legislation on the same or related issues; Plourde v. Liburdi, 207 Conn. 412, 417, 540 A.2d 1054 (1988); and “[statutes are to be interpreted with regard to other relevant statutes because the legislature is presumed to have created a consistent body of law.” (Internal quotation marks omitted.) Baybank Connecticut, N.A. v. Thumlert, 222 Conn. 784, 790, 610 A.2d 658 (1992). The approach .towards substance-abusing pregnant women that the legislature adopted by the enactment of Substitute Senate Bill No. 197, now General Statutes § 17a-644, coupled with the legislative rejection of the approach proposed by House Bill No. 5205, is inconsistent with the interpretation of § 45a-717 (f) (2) advanced by the petitioner. We therefore infer from this legislative activity in 1990 an intent that § 45a-717 (f) (2) does not contemplate a petition for termination of parental rights based upon the prenatal drug use by the mother. See Weinberg v. ARA Vending Co., 223 Conn. 336, 612 A.2d 1203 (1992) (judicial consideration of subsequent enactments in order to illuminate legislative intent with respect to prior legislative action).
The petitioner argues, as did the trial court, that pursuant to § 45a-717 (f) (2) “[t]he fact [that] the mother’s behavior occurred prior to Valerie’s birth does not relieve the mother of responsibility for the injuries her child suffered at birth. Focusing on Valerie, it is difficult to discern any distinction between administering cocaine to Valerie nine hours before her birth or nine hours after her birth. The consequences to Valerie are the same. The precise time of the injury should not be legally significant; the real issue is the injuries that [525]*525Valerie suffered. The statute requires the trial court to look back at the causes of the child’s injury and, most importantly, to assess the risk of continued harm to the child. ” (Emphasis added.) Although on the admittedly egregious facts of this case this argument has emotional appeal, we disagree with it as the appropriate reading of § 45a-717.
In this case, the respondent’s prenatal conduct took place but several hours before the onset of labor. There is no principled way, however, to confine the language of § 45a-717 (f) (2) to prenatal maternal conduct that takes place only a short time before delivery of the baby, as opposed to maternal conduct that takes place early in the pregnancy. Indeed, the petitioner’s argument recognizes this, and would have us read § 45a-717 (f) (2) so as to “look back” throughout the entire period of the pregnancy for the causes of the child’s postnatal “injuries.” Nor, for that matter, is there any principled way, under the petitioner’s proposed reading of the statute, to confine its language to prenatal maternal conduct that is illegal, as opposed to conduct that is merely unwise or unhealthy. Thus, as the petitioner conceded in oral argument in this court, the same reading of § 45a-717 (f) (2) that the petitioner would have us adopt would permit the petitioner to seek termination of the parental rights of a mother who drank alcohol excessively during her pregnancy and delivered a baby suffering from fetal alcohol syndrome. We do not deny that a policy maker might want to grant the petitioner such a power. Nor do we deny that such prenatal conduct is harmful to the fetus in the womb and the child upon its birth. Our point is that, absent some fairly clear indication to the contrary, we do not believe that the legislature intended the statute as currently drafted to have such sweeping consequences.
[526]*526We recognize, as the petitioner points out, that the intermediate appellate courts of some other jurisdictions have approved of custodial commitment petitions, and in at least one case a termination petition, based upon prenatal drug use by the mother. See, e.g., In re Troy D., 215 Cal. App. 3d 889, 263 Cal. Rptr. 869 (1989) (commitment petition); In re Solomon L., 190 Cal. App. 3d 1106, 236 Cal. Rptr. 2 (1987) (both commitment and termination petitions); In re Nash, 165 Mich. App. 450, 419 N.W.2d 1 (1987) (commitment petition); In the Matter of Baby X, 97 Mich. App. 111, 293 N.W.2d 736 (1980) (commitment petition); Matter of Stefanel Tyesha C., 157 App. Div. 2d 322, 556 N.Y.S.2d 280 (1990) (commitment petition). We are unpersuaded by the reasoning of these decisions because they do not rely, as do we, on a close examination of the language, constitutional background and available legislative history of the statutory framework purporting to support a petition for termination of parental rights.
Nor are we persuaded, as the Appellate Court was and as the petitioner advances here, by the analogy to principles of tort law that have permitted a child subsequently born to maintain a cause of action for the injurious postnatal consequences of prenatal conduct of a third party. See Ochs v. Borrelli, 187 Conn. 253, 445 A.2d 883 (1982); W. Prosser & W. Keeton, Torts (5th Ed. 1984) § 55, p. 368. We agree with the respondent that the compensatory purposes of those tort principles are inapposite to the delicate and sensitive policy choices that inform our search for the legislative intent underlying § 45a-717 (f) (2).
II
We turn next to the trial court’s second ground for termination of the respondent’s parental rights, namely, the absence of an ongoing parent-child relationship. The respondent claims that, under the facts [527]*527of this case, the judgment terminating her parental rights on that ground was unconstitutional under the due process and equal protection of the laws clauses of the federal and state constitutions, because the state was responsible for the absence of that relationship. We agree with the respondent that, under the facts and circumstances of this case, the state cannot prevail on that ground for termination of parental rights, but we rest this conclusion on established principles of statutory construction and, therefore, need not determine whether constitutional principles would also require the same conclusion.
We note first that the trial court found that there was no ongoing parent-child relationship between the respondent and the child as of November 8, 1989,26 the adjudication date as determined by the date of the last amendment of the petition. See footnote 9, supra. Our consideration of the respondent’s claim, therefore, must proceed on the premise that the petitioner established, under the facts of this case, a lack of an ongoing parent-child relationship between the respondent and her child at a point in time approximately three and one-half months after the birth of the child, where the petitioner had secured and maintained custody of the child for virtually all of that period of time.
The record discloses the following facts pertinent to this claim. The trial court found that while the respondent was in the hospital she “had much contact with [528]*528the [child].”27 The respondent was discharged from the hospital on July 28, 1989, two days after the birth of the child. On August 3, 1989, the child was discharged from the hospital to the custody of the petitioner and placed in foster care in a home in Plantsville, a section of Southington approximately ten miles from where the respondent was living with her mother in Bristol.28
On August 24, 1989, the respondent telephoned the foster mother and arranged to visit the child on August 30, 1989. After the August 30 visit, she next visited the child on September 8 at Bristol Hospital, where the child had been admitted for treatment of pneumonia,29 and visited her again in the hospital on September 12.30 The child was discharged from the hospital on September 18, 1989. Because the respondent was a hepatitis carrier, however, upon the recommendation of the child’s pediatrician DCYS requested the respondent not to visit the child until she produced a note from her physician that she was free of communicable diseases, including hepatitis. From approximately mid-September to October 4, when the respondent was able to produce the note, therefore, she was unable to visit the child. On October 10, the respondent telephoned the foster mother to inquire about the child, and visited the child at the foster home on October 19, October 23, October 25, October 30, and November 1, 1989.
[529]*529The trial court found that on October 9, 1989, the respondent entered an outpatient drug treatment program at Bristol Hospital, but remained in that program only until October 18, 1989. Despite a letter to her on October 31, 1989, from James Archambault, of the hospital counseling center, she did not return to the program.
On November 1 and 2, 1989, David M. Mantell, a licensed clinical psychologist, evaluated the respondent and the father, together with the child. The respondent admitted to Mantell that she was then incapable of caring for the child, and estimated that it would take at least one year before she would be sufficiently confident of recovering from her drug addiction to do so. In his report, dated November 5, 1989, he stated that there was no emotional connection between the respondent and the child.31 Mantell also testified at the November 8, 1989 hearing that in his opinion there was no parent-child relationship between the respondent and the child.32
[530]*530The trial court found that “Dr. Mantell’s observations confirmed what a lay trier of fact could conclude about the nature of the relationship existing between Valerie and [the respondent] on November 8, 1989. He saw no sign of bonding on November 1 and 2, and indeed, the [531]*531[mother] of a newborn who had only seen the child a handful of times in the first three months of life could not have developed the kind of relationship that results from . . a parent having met on a continuing, day-to-day basis the physical, emotional, moral and educational needs of the child,’ as described in [General Statutes § 45a-717 (f) (3)].” This finding, which was stated in the court’s July 24, 1990 written articulation, was consistent with its earlier oral finding on March 28, 1990, that the court was “not holding the parents responsible for the fact that bonding was impossible. I think that both [counsel for the parents] stressed in [their] briefs that you can’t develop a bond when you have to hitch a ride with your mother-in-law . . . and at most can visit a child infrequently .... [Y]ou can’t bond with any child I think in foster care unless there is almost daily interaction for four to six hours a day . . . .” It is clear from this record, therefore, that the lack of an ongoing parent-child relationship between the respondent and the child was the direct result of the fact that the child was in foster care apart from the respondent for almost the entire period of time between the birth and the adjudication date.
Section 45a-717 (f) (3) defines an “ongoing parent child relationship” as “the relationship that ordinarily develops as a result of a parent having met on a continuing, day-to-day basis the physical, emotional, moral and educational needs of the child.” We have recognized that the statutory definition “is inherently ambiguous when applied to noncustodial parents who must maintain their relationships with their children through visitation.” In re Jessica M., supra, 467-68. In such a case, we held that “the ultimate question is whether the child has no present memories or feelings for the natural parent.” (Emphasis added; internal quotation marks omitted.) Id.33
[532]*532Until now, however, we have not been required to apply this definition to a case, like this, where the child involved is virtually a newborn infant whose present feelings can hardly be discerned with any reasonable degree of confidence. We agree with the implicit conclusion of the trial court in this case that, in such a case, the inquiry must focus, not on the feelings of the infant, but on the positive feelings of the natural parent.34 Furthermore, until now we have not been required to consider a case in which coterminous petitions for custody and termination of parental rights have been filed virtually upon the birth of the child, and where, by virtue of the custody petition, the newborn child has been in foster care from the date of discharge from the hospital to the date of the adjudication of a lack of an ongoing parent-child relationship.
Against this background, therefore, we consider the question of whether our statutory framework regarding commitment and termination, reasonably construed, permits termination of parental rights upon the basis of the lack of an ongoing parent-child relationship in the circumstances of this case.35 We conclude that it does not.
[533]*533This consideration involves the intersection of two separate but closely related statutes: § 46b-129, which permits the petitioner, pursuant to court order, to obtain custody of a child under specified circumstances; and § 45a-717 (f) (3), which permits the court to terminate parental rights where the petitioner establishes the lack of an ongoing parent-child relationship. We do not read those two statutes to enable the petitioner to gain and maintain custody of a newborn infant pursuant to § 46b-129 under circumstances, as in this case, that will lead almost inevitably to the ground for termination under § 45a-717 (f) (3). A contrary conclusion would violate well established principles of statutory construction.
Statutes are to be construed consistently with other relevant statutes, because we presume that the legislature intended to create a coherent body of law. Baybank Connecticut, N.A. v. Thumlert, supra. We therefore read § 46b-129 so as to be consistent with § 45a-717 (f) (3). Under § 46b-129 (b), the respondent may establish the grounds for temporary custody of the child by a “reasonable cause” standard of proof, and under § 46b-129 (d) may establish the grounds for commitment for eighteen months by a preponderance of the evidence. By contrast, under § 45a-717 (f) (3), the petitioner must establish the ground for termination by clear and convincing evidence. As the facts of this case demonstrate, however, once the child had been placed in foster care pursuant to the determinations made under § 46b-129, a finding of a lack of an ongoing parent-child relationship three and one-half months later was inevitable under § 45a-717 (f) (3), because absent extraordinary and heroic efforts by the respondent, the petitioner was destined to have established the absence of such a relationship. Thus, a factual predicate for custody, established by the lesser standard of a preponderance of the evidence, led inexorably, for [534]*534all practical purposes, to the factual predicate for termination required to be established by the higher standard of clear and convincing evidence. We do not believe it would be consistent to read the two statutes together so as to contemplate such a scenario.
Furthermore, statutes are to be read so as to avoid bizarre results. State v. Uretek, Inc., 207 Conn. 706, 719, 543 A.2d 709 (1988). A parent, faced with a petition for custody under § 46b-129, may feel that she is unable to care properly for her newborn infant and, therefore, may acquiesce in that petition, as occurred in this case. That acquiescence, moreover, was in the child’s best interests. To permit that acquiescence to ripen into a ground for termination of parental rights, however, simply by virtue of the practical impossibility of maintaining the kind of contact with the child required to establish an ongoing parent-child relationship, would turn the statutory promise of appropriate care for the child into a cruel statutory hoax of termination of parental rights. We do not believe that the two statutes contemplate such a result.
Finally, statutes are to be read so as to avoid, rather than to create, constitutional questions. French v. Amalgamated Local Union 376, 203 Conn. 624, 636-37, 526 A.2d 861 (1987). In Logan v. Zimmerman Brush Co., 455 U.S. 422, 424, 102 S. Ct. 1148, 71 L. Ed. 2d 265 (1982), the United States Supreme Court held that a state may not “terminate a complainant’s cause of action because a state official, for reasons beyond the complainant’s control, failed to comply with a statutorily mandated procedure.” Although the bases of the decision varied among the various members of the court, the case is susceptible of the broad reading, advanced by the respondent in this case, that a state may not, consistent with due process of law, create the conditions that will strip an individual of an interest protected under the due process clause. Under the cir[535]*535cumstances of this case, the petitioner’s assertion and maintenance of custody of the child led directly to the conditions supporting the termination of parental rights. If we were to read § 46b-129 so as to create the conditions for termination under § 45a-717 (f) (3), the constitutionality of the statutory scheme, as applied to the facts of this case, would be in serious jeopardy under Logan v. Zimmerman Brush Co., supra. We therefore read the statutes so as to avoid such a question.
We conclude, therefore, that §§ 46b-129 and 45a-717 (f) (3) cannot be read together so as to permit the custody determinations made under the first statute to lead directly to the termination determination made under the second statute. Under the facts of this case, this conclusion fatally undermines the finding of a lack of an ongoing parent-child relationship under § 45a-717 (f) (3).
The judgment of the Appellate Court is reversed, and the case is remanded to that court with direction to remand the case to the trial court with direction to render judgment for the respondent.
In this opinion the other justices concurred.