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- Edwards, Alexis C., et al.
(author)
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Protective Effects of Pregnancy on Risk of Alcohol Use Disorder
- 2019
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In: The American journal of psychiatry. - : American Psychiatric Association Publishing. - 1535-7228 .- 0002-953X. ; 176:2, s. 138-145
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Journal article (peer-reviewed)abstract
- OBJECTIVE:: The authors sought to clarify the etiology of the association between pregnancy and reduced risk of alcohol use disorder. METHODS:: The authors used data from longitudinal population-wide Swedish medical, pharmacy, and criminal registries to evaluate whether rates of alcohol use disorder are lower during pregnancy. They compared pregnant women born between 1975 and 1992 (N=322,029) with matched population controls, with female relatives discordant for pregnancy, and with pre- and postpregnancy periods within individuals. They further compared rates of alcohol use disorder between pregnant women and their partners. RESULTS:: Pregnancy was inversely associated with alcohol use disorder across all analyses (odds ratios, 0.17-0.32). In co-relative analyses, the strength of the association increased among more closely related individuals. Within individuals, rates of alcohol use disorder were substantially decreased during pregnancy relative to the prepregnancy period (odds ratios, 0.25-0.26), and they remained reduced during postpartum periods (odds ratios, 0.23-0.31). Results were similar for second pregnancies (odds ratio, 0.23). The partners of pregnant women also exhibited reductions in alcohol use disorder (odds ratio, 0.45). Among women who became pregnant at earlier ages and those with a history of criminal behavior, the negative association between pregnancy and alcohol use disorder was especially pronounced, but no moderation was observed for a personal or maternal parental history of alcohol use disorder. CONCLUSIONS:: The findings suggest that pregnancy plays a critical, and likely causal, motivational role in reducing alcohol use disorder risk among women and, to a lesser extent, their partners. These results extend our understanding of the relationship between pregnancy and alcohol use, demonstrating that even a severe condition such as alcohol use disorder is subject to the protective effects of pregnancy.
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- Kendler, Kenneth S., et al.
(author)
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Divorce and the onset of alcohol use disorder : A Swedish population-based longitudinal cohort and co-relative study
- 2017
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In: American Journal of Psychiatry. - : American Psychiatric Association Publishing. - 0002-953X .- 1535-7228. ; 174:5, s. 451-458
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Journal article (peer-reviewed)abstract
- Objective: The purpose of this study was to clarify the magnitude and nature of the relationship between divorce and risk for alcohol use disorder (AUD). Method: In a population-based Swedish sample of married individuals (N=942,366), the authors examined the association between divorce or widowhood and risk for first registration for AUD. AUD was assessed usingmedical, criminal, and pharmacy registries. Results: Divorcewas strongly associatedwith risk for first AUD onset in bothmen (hazard ratio=5.98, 95% CI=5.65-6.33) and women (hazard ratio=7.29, 95% CI=6.72-7.91). The hazard ratio was estimated for AUD onset given divorce among discordant monozygotic twins to equal 3.45 and 3.62 in men andwomen, respectively. Divorcewas also associatedwith an AUD recurrence in those with AUD registrations before marriage. Furthermore,widowhood increased risk for AUD inmen (hazard ratio=3.85, 95% CI=2.81-5.28) and women (hazard ratio=4.10, 95% CI=2.98-5.64). Among divorced individuals, remarriage was associated with a large decline in AUD in both sexes (men: hazard ratio=0.56, 95% CI=0.52-0.64; women: hazard ratio=0.61, 95% CI=0.55-0.69). Divorce produced a greater increase in first AUDonset in thosewith a family history of AUD or with prior externalizing behaviors. Conclusions: Spousal loss through divorce or bereavement is associated with a large enduring increased AUD risk. This association likely reflects both causal and noncausal processes. That the AUD status of the spouse alters this association highlights the importance of spouse characteristics for the behavioral health consequences of spousal loss. The pronounced elevation in AUD risk following divorce or widowhood, and the protective effect of remarriage against subsequent AUD, speaks to the profound impact of marriage on problematic alcohol use.
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- Kendler, Kenneth S., et al.
(author)
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Effect of marriage on risk for onset of alcohol use disorder : A longitudinal and co-relative analysis in a swedish national sample
- 2016
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In: American Journal of Psychiatry. - : American Psychiatric Association Publishing. - 0002-953X .- 1535-7228. ; 173:9, s. 911-918
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Journal article (peer-reviewed)abstract
- Objective: The authors sought to clarify the relationship between marriage and risk for alcohol use disorder. Method: The association between marital status and risk for first registration for alcohol use disorder in medical, criminal, and pharmacy registries was assessed in a population-based Swedish cohort (N=3,220,628) using longitudinal timedependent survival and co-relative designs. Results: First marriage was associated with a substantial decline in risk for onset of alcohol use disorder in men (hazard ratio=0.41, 95% CI=0.40-0.42) and women (hazard ratio=0.27, 95% CI=0.26-0.28). This association was slightly stronger when the spouse had no lifetime alcohol use disorder, while marriage to a spouse with lifetime alcohol use disorder increased risk for subsequent alcohol use disorder registration in both men (hazard ratio=1.29, 95% CI=1.16-1.43) and women (hazard ratio=1.18, 95% CI=1.06-1.30). In both sexes, the protective effect of marriage was significantly stronger in those with than those without a family history of alcohol use disorder. In both men and women, the associations between marriage and risk for alcohol use disorder in cousins, half siblings, full siblings, and monozygotic twins discordant for marital status were as strong as that seen in the general population. Conclusions: First marriage to a spouse with no lifetime alcohol use disorder is associated with a large reduction in risk for alcohol use disorder. This association cannot be explained by standard covariates or, as indicated by corelative analyses, familial genetic or shared environmental confounders. These results are consistent with the hypothesis that the psychological and social aspects of marriage, and in particular health-monitoring spousal interactions, strongly protect against the development of alcohol use disorder. The protective effects of marriage on risk for alcohol use disorder are increased in those at high familial risk for alcoholism.
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- Kendler, Kenneth S., et al.
(author)
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The protective effect of pregnancy on risk for drug abuse : A population, Co-relative, Co-spouse, and within-individual analysis
- 2017
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In: American Journal of Psychiatry. - : American Psychiatric Association Publishing. - 0002-953X .- 1535-7228. ; 174:10, s. 954-962
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Journal article (peer-reviewed)abstract
- Objective: The authors sought to determine whether pregnancy is an intrinsic motivator for cessation of drug abuse. Method: The authors conducted prospective cohort, corelative, co-spouse, and within-person analyses of registration for drug abuse during pregnancy among Swedish women born between 1980 and 1990 who gave birth between ages 20 and 35 (N=149,512). Drug abuse was assessed from medical, criminal, and pharmacy registries. Results: In the population, rates of drug abuse were lower during pregnancy (unadjusted odds ratio=0.67,95%CI=0.60, 0.74). Compared with population results, the negative association between pregnancy and drug abuse was moderately stronger in cousins (odds ratio=0.49,95%CI=0.39, 0.62) and substantially stronger in siblings (odds ratio=0.35, 95% CI=0.24, 0.51) discordant for pregnancy. The estimated odds ratio for drug abuse in pregnancy-discordant monozygotic twins was even stronger, at 0.17 (95% CI=0.10, 0.31). Within individuals, the odds ratio for drug abuse while pregnant compared with an equivalent prepregnancy interval was similar to that seen in pregnancy-discordant monozygotic twins, at 0.22 (95% CI=0.19, 0.26). Compared with cohabiting fathers, mothers had a greater reduction in risk for drug abuse during pregnancy (odds ratio=0.40, 95% CI=0.34, 0.47). Pregnancy was more protective in women with low parental education and without a cohabiting, actively drug-abusing father. Compared with prepregnancy baseline, withinindividual analyses indicate that risk for drug abuse is also substantially reduced in the postpartum period, for example, the odds ratio for postpartum days 0-242 was 0.13 (95% CI=0.11, 0.16). Conclusions: Risk for drug abuse in women is substantially reduced during pregnancy. Multiple analyses suggest that this association is largely causal, suggesting that pregnancy is indeed a strong intrinsic motivator for drug abuse cessation. Similar strong protective effects may be present in the immediate postpartum period. Our results have implications for our etiologic models of drug abuse and especially for contingency management programs seeking to reduce drug abuse risk.
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- Kendler, Ken, et al.
(author)
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Triparental Families: A New Genetic-Epidemiological Design Applied to Drug Abuse, Alcohol Use Disorders, and Criminal Behavior in a Swedish National Sample.
- 2015
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In: American Journal of Psychiatry. - : American Psychiatric Association Publishing. - 1535-7228 .- 0002-953X. ; 172:6, s. 553-560
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Journal article (peer-reviewed)abstract
- Objective: The authors sought to clarify the sources of parent-offspring resemblance for drug abuse, alcohol use disorders, and criminal behavior, using a novel genetic-epidemiological design. Method: Using national registries, the authors identified rates of drug abuse, alcohol use disorders, and criminal behavior in 41,360 Swedish individuals born between 1960 and 1990 and raised in triparental families comprising a biological mother who reared them, a "not-lived-with" biological father, and a stepfather. Results: When each syndrome was examined individually, hazard rates for drug abuse in offspring of parents with drug abuse were highest for mothers (2.80, 95% CI=2.23-3.38), intermediate for not-lived-with fathers (2.45, 95% CI=2.14-2.79), and lowest for stepfathers (1.99, 95% CI=1.55-2.56). The same pattern was seen for alcohol use disorders (2.23, 95% CI=1.93-2.58; 1.84, 95% CI=1.69-2.00; and 1.27, 95% CI=1.12-1.43) and criminal behavior (1.55, 95% CI=1.44-1.66; 1.46, 95% CI=1.40-1.52; and 1.30, 95% CI=1.23-1.37). When all three syndromes were examined together, specificity of cross-generational transmission was highest for mothers, intermediate for not-lived-with fathers, and lowest for stepfathers. Analyses of intact families and other not-lived-with parents and stepparents showed similar cross-generation transmission for these syndromes in mothers and fathers, supporting the representativeness of results from triparental families. Conclusions: A major strength of the triparental design is its inclusion, within a single family, of parents who provide, to a first approximation, their offspring with genes plus rearing, genes only, and rearing only. For drug abuse, alcohol use disorders, and criminal behavior, the results of this study suggest that parent-offspring transmission involves both genetic and environmental processes, with genetic factors being somewhat more important. These results should be interpreted in the context of the strengths and limitations of national registry data.
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