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Détail de l'auteur
Auteur I. TUNG |
Documents disponibles écrits par cet auteur (2)
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Adolescent childbirth, miscarriage, and abortion: associations with changes in alcohol, marijuana, and cigarette use / I. TUNG in Journal of Child Psychology and Psychiatry, 61-1 (January 2020)
[article]
Titre : Adolescent childbirth, miscarriage, and abortion: associations with changes in alcohol, marijuana, and cigarette use Type de document : Texte imprimé et/ou numérique Auteurs : I. TUNG, Auteur ; Jordan BEARDSLEE, Auteur ; Dustin A. PARDINI, Auteur ; T. CHUNG, Auteur ; Kate KEENAN, Auteur ; A. E. HIPWELL, Auteur Article en page(s) : p.104-111 Langues : Anglais (eng) Mots-clés : Adolescence alcohol use pregnancy substance use teenage mothers Index. décimale : PER Périodiques Résumé : BACKGROUND: Adolescent girls who become pregnant demonstrate greater risk for substance use than same-aged peers. However, it remains unclear how risk relates to normative changes in adolescence. Few studies have examined adolescent substance use changes before, during, and after pregnancy and considered how pregnancy outcomes (childbirth, miscarriage, abortion) differentially influence substance use changes. The present study examined associations between different adolescent pregnancy outcomes and within-person changes in substance use from prepregnancy to postpregnancy. METHODS: Participants included 2,450 girls (52% Black) oversampled from low-income urban neighborhoods in Pittsburgh, PA. Participants self-reported pregnancy outcomes and substance use frequency (alcohol, cigarette, marijuana) annually from ages 11-20. Fixed effects regressions focused on first births, first miscarriages, and first abortions occurring from ages 12-19 to test the associations between pregnancy outcomes and within-individual changes in substance use from prepregnancy to postpregnancy. By design, models controlled for all potential time-stable confounds, and models included age and subsequent pregnancies as time-varying covariates. RESULTS: Consistent with prior studies, girls who became pregnant (20%) reported greater early risk for substance use problems than never-pregnant adolescents, including earlier age of onset and more regular marijuana and cigarette use. Childbirth predicted a 26%-51% within-individual reduction in alcohol, marijuana, and cigarette use that remained significantly lower than prepregnancy levels after childbirth. Alcohol and marijuana use decreased (32%-47%) after miscarriage. Abortion was not associated with long-term changes in substance use; however, marijuana and cigarette use gradually increased (44%-46%) in the years leading up to the year of and after abortion, respectively, before returning to prepregnancy levels. CONCLUSIONS: Findings highlight important differences in adolescent substance use patterns based on pregnancy outcome. For pregnant adolescents with heightened pre-existing risk for substance use, pregnancy may be a window of opportunity for substance use screening and behavioral intervention. En ligne : http://dx.doi.org/10.1111/jcpp.13112 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=414
in Journal of Child Psychology and Psychiatry > 61-1 (January 2020) . - p.104-111[article] Adolescent childbirth, miscarriage, and abortion: associations with changes in alcohol, marijuana, and cigarette use [Texte imprimé et/ou numérique] / I. TUNG, Auteur ; Jordan BEARDSLEE, Auteur ; Dustin A. PARDINI, Auteur ; T. CHUNG, Auteur ; Kate KEENAN, Auteur ; A. E. HIPWELL, Auteur . - p.104-111.
Langues : Anglais (eng)
in Journal of Child Psychology and Psychiatry > 61-1 (January 2020) . - p.104-111
Mots-clés : Adolescence alcohol use pregnancy substance use teenage mothers Index. décimale : PER Périodiques Résumé : BACKGROUND: Adolescent girls who become pregnant demonstrate greater risk for substance use than same-aged peers. However, it remains unclear how risk relates to normative changes in adolescence. Few studies have examined adolescent substance use changes before, during, and after pregnancy and considered how pregnancy outcomes (childbirth, miscarriage, abortion) differentially influence substance use changes. The present study examined associations between different adolescent pregnancy outcomes and within-person changes in substance use from prepregnancy to postpregnancy. METHODS: Participants included 2,450 girls (52% Black) oversampled from low-income urban neighborhoods in Pittsburgh, PA. Participants self-reported pregnancy outcomes and substance use frequency (alcohol, cigarette, marijuana) annually from ages 11-20. Fixed effects regressions focused on first births, first miscarriages, and first abortions occurring from ages 12-19 to test the associations between pregnancy outcomes and within-individual changes in substance use from prepregnancy to postpregnancy. By design, models controlled for all potential time-stable confounds, and models included age and subsequent pregnancies as time-varying covariates. RESULTS: Consistent with prior studies, girls who became pregnant (20%) reported greater early risk for substance use problems than never-pregnant adolescents, including earlier age of onset and more regular marijuana and cigarette use. Childbirth predicted a 26%-51% within-individual reduction in alcohol, marijuana, and cigarette use that remained significantly lower than prepregnancy levels after childbirth. Alcohol and marijuana use decreased (32%-47%) after miscarriage. Abortion was not associated with long-term changes in substance use; however, marijuana and cigarette use gradually increased (44%-46%) in the years leading up to the year of and after abortion, respectively, before returning to prepregnancy levels. CONCLUSIONS: Findings highlight important differences in adolescent substance use patterns based on pregnancy outcome. For pregnant adolescents with heightened pre-existing risk for substance use, pregnancy may be a window of opportunity for substance use screening and behavioral intervention. En ligne : http://dx.doi.org/10.1111/jcpp.13112 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=414 Childhood maltreatment affects adolescent sensitivity to parenting and close friendships in predicting growth in externalizing behavior / I. TUNG in Development and Psychopathology, 31-4 (October 2019)
[article]
Titre : Childhood maltreatment affects adolescent sensitivity to parenting and close friendships in predicting growth in externalizing behavior Type de document : Texte imprimé et/ou numérique Auteurs : I. TUNG, Auteur ; A. N. NORONA, Auteur ; S. S. LEE, Auteur Article en page(s) : p.1237-1253 Langues : Anglais (eng) Mots-clés : adolescent development childhood maltreatment environmental sensitivity externalizing behavior Index. décimale : PER Périodiques Résumé : Childhood maltreatment robustly predicts adolescent externalizing behaviors (EB; e.g., violence, delinquency, substance use) and may crystalize patterns of EB by influencing sensitivity to the social environment (e.g., parenting, friendships). In a nationally representative sample of 9,421 adolescents, we modeled latent growth curves of EB from age 13 to 32 years. Next, we explored whether maltreated youth differed from nonmaltreated youth in their sensitivity to parental closeness, friendship involvement, and polymorphisms from dopamine genes linked to EB (dopamine receptors D2 and D4, dopamine transporter). Overall, maltreated youth had significantly higher levels of EB across adolescence and adulthood; however, maltreated and nonmaltreated youth showed similar patterns of EB change over time: violent behavior decreased in adolescence before stabilizing in adulthood, whereas nonviolent delinquency and substance use increased in adolescence before decreasing in the transition to adulthood. Maltreatment reduced sensitivity to parental closeness and friendship involvement, although patterns varied based on type of EB outcome. Finally, none of the environmental effects on EB were significantly moderated by the dopamine polygenic risk score after accounting for multiple testing. These findings underline the enduring effects of early maltreatment and implicate that maltreatment may contribute to long-term risk for EB by influencing children's sensitivity to social relationship factors in adolescence. En ligne : http://dx.doi.org/10.1017/s0954579418000585 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=406
in Development and Psychopathology > 31-4 (October 2019) . - p.1237-1253[article] Childhood maltreatment affects adolescent sensitivity to parenting and close friendships in predicting growth in externalizing behavior [Texte imprimé et/ou numérique] / I. TUNG, Auteur ; A. N. NORONA, Auteur ; S. S. LEE, Auteur . - p.1237-1253.
Langues : Anglais (eng)
in Development and Psychopathology > 31-4 (October 2019) . - p.1237-1253
Mots-clés : adolescent development childhood maltreatment environmental sensitivity externalizing behavior Index. décimale : PER Périodiques Résumé : Childhood maltreatment robustly predicts adolescent externalizing behaviors (EB; e.g., violence, delinquency, substance use) and may crystalize patterns of EB by influencing sensitivity to the social environment (e.g., parenting, friendships). In a nationally representative sample of 9,421 adolescents, we modeled latent growth curves of EB from age 13 to 32 years. Next, we explored whether maltreated youth differed from nonmaltreated youth in their sensitivity to parental closeness, friendship involvement, and polymorphisms from dopamine genes linked to EB (dopamine receptors D2 and D4, dopamine transporter). Overall, maltreated youth had significantly higher levels of EB across adolescence and adulthood; however, maltreated and nonmaltreated youth showed similar patterns of EB change over time: violent behavior decreased in adolescence before stabilizing in adulthood, whereas nonviolent delinquency and substance use increased in adolescence before decreasing in the transition to adulthood. Maltreatment reduced sensitivity to parental closeness and friendship involvement, although patterns varied based on type of EB outcome. Finally, none of the environmental effects on EB were significantly moderated by the dopamine polygenic risk score after accounting for multiple testing. These findings underline the enduring effects of early maltreatment and implicate that maltreatment may contribute to long-term risk for EB by influencing children's sensitivity to social relationship factors in adolescence. En ligne : http://dx.doi.org/10.1017/s0954579418000585 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=406