Research on Gene-Environment Interplay in the Era of "Big Data"

Modern lifestyle risks associated with alcohol consumption and cigarette smoking in Ukraine

Background

Substance uses confer huge risks for public health in modern society. This study aimed to evaluate current factors related to alcohol drinking and tobacco smoking in the republic of Ukraine.

Methods

We distributed a questionnaire to healthy volunteers in four Ukrainian regions and collected 929 responses regarding demographic information, reasons for starting substance use, substance use family history, environmental factors, use pattern (internet, drinking or smoking), consequences of drinking, and insomnia. Linear regression and logistic regression analyses were performed to identify factors related to alcohol drinking and cigarette smoking.

Results

Aging appeared to attenuate either drinking or smoking. To reduce school- or job-related stress, staying awake, peer pressure, friend-related issues, or to increase sexual desire and single parenting all would trigger drinking; male gender, family divorce, unhealthy diet and lack of awareness about harmful consequences were the main factors leading to smoking. Logistic regression suggested that education background, sleep problems, celebration events and lengthy internet work all could contribute to drinking.

Conclusions

Various real-world factors related to substance uses were identified for the public of Ukraine. A validated instrument would help to identify risk factors in patients with substance use disorders.

Alcohol Dependence and Reproductive Onset in Women, Updated: Analyses of Research and State-Level Administrative Data

OBJECTIVE

The present study updates prior research, incorporating state-level administrative data to examine associations between self-reported history of alcohol dependence and birth record-derived reproductive onset, the latter assessed through peak childbearing years.

METHOD

Participants included 542 African ancestry (AA) and 2,928 European or other ancestry (EA) female twins ascertained through Missouri birth records and recruited as part of a birth cohort study of like-sex female pairs born between 1975 and 1985. Analyses were limited to twins for whom residence in Missouri when of reproductive age could be documented, including twins who left Missouri but later returned. Cox proportional hazards regression models were estimated predicting age at first childbirth from history of alcohol dependence, separately for AA and EA twins, without and with adjustment for sociodemographic characteristics, comorbid psychopathology and other substance involvement, overweight/obesity status, and family-of-origin and childhood risk factors.

RESULTS

Among EA twins, alcohol dependence predicted both early and delayed childbearing; in adjusted models, alcohol dependence was associated with overall delayed childbearing. Associations between alcohol dependence and reproductive onset were nonsignificant among AA twins.

CONCLUSIONS

Findings for EA twins are consistent with the broader literature indicating increased risk of teen motherhood associated with early-onset and problem drinking, but suggest that this may be explained by other correlated risk factors. The more robust finding, confirming relatively recent research, is of delayed childbearing associated with alcohol dependence.