The results of this prospective community study highlight the role of intelligence in avoidance of exposure to traumatic experiences and their PTSD effects. They underscore the need for investigating cognitive processes in persons' responses to traumatic experiences and the involvement of general intelligence in these processes.

In a general population sample from the Detroit site of the Collaborative Genetic Study of Nicotine Dependence (COGEND), we tested Black-White differences in nicotine dependence, measured by "how soon after wake-up the smokers smoked their first cigarette (time to first cigarette TTFC)", and its relationship with number of cigarettes per day (CPD). Analysis was conducted on respondents who have smoked > or =100 cigarettes in lifetime and were current smokers (n = 1,442; 1,087 Whites and 355 Blacks). In univariate analysis, we found no significant race differences on time to first cigarette (chi2 = 2.9, p value = 0.41), but significant race differences on CPD (chi2 = 154.3, p<.01), both categorized by the Fagerström Test of Nicotine Dependence (FTND) cutoffs. We estimated the probability of TTFC < or =30 min given CPD using probit models. The interactions between race and CPD indicated significant differences in dependence at various levels of CPD. The same probability of nicotine dependence was associated with smaller increments in CPD for Blacks than for Whites. The data support the hypothesis that the relationship between CPD and nicotine dependence as reflected in relapse varies by race, and that Black smokers are dependent at lower levels of CPD than Whites.

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Objective: to determine the risk factors for premature birth. Methods: retrospective case-control study of 600 pregnant women assisted in a hospital, with 298 pregnant women in the case group (who gave birth prematurely <37 weeks) and 302 pregnant women who gave birth to a full-term newborn in the control group. Stata software version 12.2 was used. The Chi-square test was used in bivariate analysis and logistic regression was used in multivariate analysis, from which Odds Ratios (OR) and Confidence Intervals (CI) of 95% were derived. Results: risk factors associated with premature birth were current twin pregnancy (adjusted OR= 2.4; p= 0.02), inadequate prenatal care (< 6 controls) (adjusted OR= 3.2; p <0.001), absent prenatal care (adjusted OR= 3.0; p <0.001), history of premature birth (adjusted OR= 3.7; p <0.001) and preeclampsia (adjusted OR= 1.9; p= 0.005). Conclusion: history of premature birth, preeclampsia, not receiving prenatal care and receiving inadequate prenatal care were risk factors for premature birth.

Objective: To determine the association between body image dissatisfaction (BID) and depressive symptoms in adolescents from a school in Lima, Peru. Methods: A cross-sectional study was performed through a census of 875 high-school students, aged 13 to 17 years, from a school in Lima. Participants completed a survey containing the Body Shape Questionnaire (BSQ) and the Patient Health Questionnaire-9 (PHQ-9). Data regarding demographics, alcohol and tobacco use, self-esteem, and family history of depression were also obtained. To identify associated factors, Poisson regression with robust variance was used. Prevalence ratios with 95% confidence intervals were calculated. Results: Of the 875 adolescents, 55.8% were male. The mean age was 14.161.5 years. Depressive symptoms were observed in 19.9% of participants. An association between BID and depressive symptoms was found. Alcohol and tobacco use were also associated with the outcome of interest. Conclusions: Teens who had BID were 3.7 times more likely to report depressive symptoms. Additionally, those who used tobacco or alcohol were 1.5 and 1.4 times more likely to have depressive symptoms, respectively. Further studies targeting other populations and using longitudinal designs are recommended.