Factors associated with risk behaviors in adolescence: a systematic review

Objective: Understanding the distal (≤ 6 years of age) and proximal (between 6 years of age and early adolescence) factors in adolescent risk behavior is important for preventing and reducing morbidity and mortality in this population. This study sought to investigate the factors associated with the following adolescent risk behaviors: i) aggressiveness and violence, ii) tobacco, alcohol, and illicit substance use, iii) depressive behavior and self-harm (including suicidal ideation and attempts), iv) sexual risk behavior, and v) multiple risk behavior. Methods: A systematic review was conducted to identify longitudinal studies that examined factors associated with adolescent risk behaviors. The PubMed, PsycINFO, and LILACS databases were searched. Results: Of the 249 included studies, 23% reported distal risk factors, while the remaining reported proximal risk factors. Risk factors were related to sociodemographic characteristics (neighborhood, school, and peers), family patterns, and the presence of other adolescent risk behaviors. Conclusion: Distal and proximal factors in adolescent risk behavior that are not exclusively socioeconomic, familial, environmental, or social should be explored more thoroughly.

Partner relationship quality predicts later postpartum depression independently of the chronicity of depressive symptoms

Objective: Given the lifelong implications of extended postpartum depression (PPD), research is needed to examine the social factors implicated in its development (such as relationship quality) and associated predictors. This study sought to examine the association of partner relationship quality (PRQ) and decline of sexual life (DSL) with maternal PPD at 12-15 months after childbirth. Methods: Prospective study of 294 low-income postpartum women. A structured questionnaire and the Patient Health Questionnaire-9 (PHQ-9) captured responses for the main outcome variable and covariates. Results: The prevalence of the main outcome (PPD at 12-15 months) was 19.1%. Using logistic regression models, low PRQ (risk ratio [RR] = 1.58, 95%CI 1.01-2.49) and DSL (RR = 1.97, 95%CI 1.23-3.15) were associated with PPD at 12-15 months even after controlling for perinatal depression. Conclusions: Late PPD (12 to 15 months after giving birth) is very common among low-income women, and is independently associated with different aspects of the couple's relationship. Improving PRQ may prevent late PPD. Future investigations are warranted.

Continuity of psychiatric disorders between 6 and 11 years of age in the 2004 Pelotas Birth Cohort

Objective: To investigate the incidence and homotypic and heterotypic continuity of psychiatric disorders between ages 6 and 11. Methods: In 2004, all live births in the city of Pelotas, Brazil, were recorded (n=4,231). Psychiatric disorders were assessed by the Strengths and Difficulties Questionnaire (SDQ). SDQ subscale scores (emotional symptoms, conduct problems, hyperactivity/inattention, and peer relationship problems) were categorized as normal or abnormal. To examine associations between problems over time, odds ratios were computed using logistic regression. Results: Any SDQ difficulty was observed in 350 children (10.4%, 95%CI 9.4-11.5) at age 6 and 476 (14.2%, 95%CI 13.0-15.4) at age 11, with a higher prevalence among boys at both ages. Between ages 6 and 11, there was a 50 and a 45% increase in the prevalence of emotional and hyperactivity/inattention symptoms, respectively. Among those who had any SDQ difficulty at age 6, that status persisted in 81% at age 11. We found homotypic continuity of emotional symptoms, conduct problems, hyperactivity/inattention, and peer relationship problems. Conclusions: Our results indicate an increasing incidence of psychiatric disorders in this age group, with rates of disorders and continuity patterns similar to those observed in other studies.