Parental separation, parental alcoholism, and timing of first sexual intercourse.
- Authors
- Waldron, Mary; Doran, Kelly A; Bucholz, Kathleen K; Duncan, Alexis E; Lynskey, Michael T; Madden, Pamela A F; Sartor, Carolyn E; Heath, Andrew C
- Year
- 2015
- Journal
- The Journal of adolescent health : official publication of the Society for Adolescent Medicine
- PMID
- 25907653
- DOI
- 10.1016/j.jadohealth.2015.01.011
- PMCID
- PMC4409650
PURPOSE: We examined timing of first voluntary sexual intercourse as a joint function of parental separation during childhood and parental history of alcoholism. METHODS: Data were drawn from a birth cohort of female like-sex twins (n = 569 African ancestry [AA]; n = 3,415 European or other ancestry [EA]). Cox proportional hazards regression was conducted predicting age at first sex from dummy variables coding for parental separation and parental alcoholism. Propensity score analysis was also employed to compare intact and separated families, stratified by predicted probability of separation. RESULTS: Earlier sex was reported by EA twins from separated and alcoholic families, compared to EA twins from intact nonalcoholic families, with effects most pronounced through the age of 14 years. Among AA twins, effects of parental separation and parental alcoholism were largely nonsignificant. Results of propensity score analyses confirmed unique risks from parental separation in EA families, where consistent effects of parental separation were observed across predicted probability of separation. For AA families, there was poor matching on risk factors presumed to predate separation, which limited interpretability of survival-analytic findings. CONCLUSIONS: In European American families, parental separation during childhood is an important predictor of early-onset sex, beyond parental alcoholism and other correlated risk factors. To characterize risk for African Americans associated with parental separation, additional research is needed where matching on confounders can be achieved.
No figures extracted from this document.
| Name | Type |
|---|---|
| AA twins | cohort |
| adolescents | cohort |
| African American | cohort |
| African_American_Families local | cohort |
| African ancestry families local | cohort |
| African ancestry female twins | cohort |
| age at first sexual intercourse | phenotype |
| Age at first voluntary sexual intercourse local | phenotype |
| Age at separation local | phenotype |
| age of onset | phenotype |
| alcohol | phenotype |
| alcohol dependence | phenotype |
| alcoholic intact families local | phenotype |
| alcoholism | phenotype |
| Alcohol Use Disorder | phenotype |
| birth control | drug |
| Children of Alcoholics (COAs) local | cohort |
| Collaborative Study on the Genetics of Alcoholism (COGA) | cohort |
| Condoms local | drug |
| conduct disorder | phenotype |
| Coparent alcohol problems local | phenotype |
| Deviant peer association local | phenotype |
| EA families | cohort |
| early alcohol use | phenotype |
| Early-onset sex local | phenotype |
| Early-onset sexual intercourse local | phenotype |
| Early sex | phenotype |
| Early sexual intercourse local | phenotype |
| EA twins | cohort |
| EA twins from intact alcoholic families local | cohort |
| EA twins from intact nonalcoholic families local | cohort |
| EA twins from separated alcoholic families local | cohort |
| EA twins from separated nonalcoholic families local | cohort |
| European ancestry | cohort |
| European ancestry families local | cohort |
| European ancestry female twins | cohort |
| European_Ancestry_Twin_Families local | cohort |
| excessive alcohol consumption | phenotype |
| Family background characteristics local | phenotype |
| father left school before grade 12 local | phenotype |
| First sex local | phenotype |
| First_Sex_Timing local | phenotype |
| Forced sexual intercourse local | phenotype |
| hyperactivity | phenotype |
| inattention | phenotype |
| intact alcoholic families local | cohort |
| intact families | cohort |
| Intact two-parent families local | phenotype |
| major depressive disorder | phenotype |
| maternal age at twins’ birth | phenotype |
| Maternal ratings of alcohol problems local | phenotype |
| maternal smoking | phenotype |
| Missouri Adolescent Female Twin Study | cohort |
| Mother self-report AD symptoms local | phenotype |
| Mothers who gave birth as teens local | phenotype |
| Multiple concurrent partners local | phenotype |
| nonalcoholic intact families local | phenotype |
| Non-Hispanic White families local | cohort |
| Nonmarital dissolution local | phenotype |
| Offspring early sexual onset local | phenotype |
| offspring religious attendance during childhood local | phenotype |
| oppositional defiant disorder | phenotype |
| parental alcoholism | phenotype |
| Parental_Alcoholism local | phenotype |
| Parental alcohol misuse local | phenotype |
| parental divorce/separation | phenotype |
| parental education | phenotype |
| Parental_Separation local | phenotype |
| parents | cohort |
| paternal alcoholism | phenotype |
| physical abuse | phenotype |
| race/ethnicity | phenotype |
| separated alcoholic families local | cohort |
| separated families local | cohort |
| Separated families local | cohort |
| separated nonalcoholic families local | cohort |
| Sexual behavior during adolescence local | phenotype |
| Sexually transmitted infection local | phenotype |
| Sexual onset local | phenotype |
| sexual onset ages 15–17 local | phenotype |
| sexual onset through age 14 local | phenotype |
| Siblings_or_Twins local | cohort |
| smoking | phenotype |
| social anxiety | phenotype |
| Stepparent presence local | phenotype |
| substance use | phenotype |
| suicide | phenotype |
| teenage motherhood local | phenotype |
| Teenage pregnancy | phenotype |
| timing of first sex local | phenotype |
| Timing of first sexual intercourse local | phenotype |
| Twin cohort | cohort |
| Twin outcomes local | phenotype |
| voluntary sexual intercourse local | phenotype |
| Voluntary sexual intercourse local | phenotype |
| Washington University | cohort |
| wave 2 | cohort |
| zygosity | phenotype |
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