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Background. The beneficial effects of physical activity (PA) for both physical and mental wellbeing are well established. Given that adolescence presents a critical developmental period during which life-long patterns of PA become established, the exploration of the longitudinal impact of adolescent psychopathology on adult PA status is of interest. Methods. We analysed prospective data from 3663 young adults who participated in the Mater-University of Queensland Study of Pregnancy. Psychopathology was measured using the Youth Self-Report (YSR) at age 14. Participants' engagement in three types of PA (vigorous exercise, moderate exercise and walking) at age 21 were dichotomised into either 'none' or 'any'. For our main analysis, we examined the association between the YSR score and subsequent PA engagement using logistic regression. We also conducted sensitivity analyses of longitudinal associations between the YSR internalising and externalising symptoms score at age 14 and PA engagement at age 21. Results. We found no longitudinal association between the total YSR score at age 14 and PA engagement at age 21. In addition, there was no longitudinal association between the YSR internalising or externalising symptoms and PA engagement. Conclusion. Our findings suggest that there is no longitudinal association between adolescent psychopathology and PA in young adulthood. [ABSTRACT FROM AUTHOR]

OBJECTIVES: Little is known about whether commonly occurring adverse birth outcomes have a long-term impact on the mental health of mothers. The aim of this study was to investigate whether commonly occurring adverse birth outcomes predicted mothers' depressive-symptom trajectories over a 27-year period following the birth of a baby. STUDY DESIGN: Longitudinal study. METHODS: Participants comprised a sub-group of women from the longitudinal cohort of the Mater and University of Queensland Study of Pregnancy. Maternal depression was measured at six time points from the first clinic visit of an index pregnancy to 27 years after birth. A semi-parametric mixture model was used to identify three symptom trajectories of low-stable, moderate-stable and moderate-rising depression. Multinomial logistic regression was then used to determine whether a number of commonly occurring birth outcomes predicted moderate-stable and/or moderate-rising depression trajectories over the subsequent 27 years. Sociodemographic and behavioural factors were used to adjust for possible confounding. RESULTS: After adjustment for potential confounders, none of the adverse birth outcomes predicted subsequent maternal depression trajectories. Teenage pregnancy, not completing high school, low family income, obesity, poorer quality partnership and not exercising, measured at women's first clinic visit, and small social networks at three to five days after birth, were significantly associated with women's moderate-rising depressive-symptoms trajectory over 27 years. [ABSTRACT FROM AUTHOR]

Objectives: Considerable evidence suggests maternal psychopathology influences that of their offspring. The probability of a reverse causal pathway has been only rarely considered but is a concern, given around 10% of children manifest mental impairment during their early years. This study determines the extent to which child behavior problems at ages 5 and 14 years are associated with mothers' mental health at 21 years post birth. Study design: Longitudinal study. Methods: Data were taken from a sample of 3650 women from Mater and University of Queensland Study of Pregnancy birth cohort. Women's mental health was measured using the Mental Disorder Screening Tool at 21 years post birth. The Child Behavior Check List was used to measure internalizing, combined social/attention/thought disorder, and aggression at the age of 5 and 14 years. Logistic regression was used to derive odds ratios and 95% confidence intervals. A number of confounders were used to test for independence. Results: Following all adjustments, child internalizing behaviors and combined social/ attention/thought disorder at 5 years, and all measures of child behavior problem at 14 years were associated with mothers meeting criteria for mental health impairment at 21 years post birth. Moreover mothers of children with behavior problems at 14 years were approximately 2-3 times more likely to these meet these criteria. Conclusions: Mothers of children with behavior problems at 5 and 14 years of age were more likely to have mental health impairment at 21 years post birth. Child health professionals should be cognizant of the motherechild relationship having mutual mental health vulnerability. [ABSTRACT FROM AUTHOR]

Survey research frequently involves missing cases attributable to refusals to participate, lack of success in accessing all potential respondents or loss to follow-up in longitudinal studies. There is concern that those not recruited or those lost are a select group whose absence from a study may bias the findings of the study. This study provides a test of the extent to which selective loss to follow-up in a longitudinal study may lead to biased findings. The Mater-University Study of Pregnancy collected baseline information for 7718 pregnant women. Follow-ups occurred five years, 14 years, 21 years and 27 years after the birth, for 6753 eligible women. Participants at baseline were partitioned according to follow-up status for each follow-up. We compare baseline (at recruitment) measures of association, with these same measures of association for those retained in the study (Group A) and those lost to follow-up (Group B) at each phase of data. Using univariate logistic regression we compared the strength of association between maternal mental health and various baseline socio-demographic factors for different rates of loss to follow-up. Estimates of association at baseline, and at each follow-up are similar irrespective of the rate of loss to follow-up and whether the comparison is with those retained in the study or those lost to follow-up. There were no statistically significant differences in 90.8% of baseline comparisons with Group A, and 96.9% of comparisons with Group B measures of association. We conclude that differential loss to follow-up rarely affects estimates of association. We suggest that loss to follow-up may produce misleading findings only in circumstances where loss to follow-up is combined with a number of other sources of bias., (Copyright © 2018. Published by Elsevier Ltd.)