Chronic sleep disturbance, not chronic sleep deprivation, is associated with self-rated health in adolescents.

Improving our understanding of the cumulative effects of persistent sleep problems on adolescent health has been identified as an important area of research. This prospective study aimed to ascertain prospectively gender-specific associations between quantity and quality of sleep and self-reported health. Data from a cohort of 3104 adolescents (13-18 y) with repeated measures of sleep deprivation and sleep disturbance (2011 fall, 2012 spring, 2012 fall), and self-reported health (SRH) (2011 fall, 2012 fall) were analysed with multivariable logistic regression models adjusted for confounders. The results of the regression models indicated that cumulative exposure to sleep disturbance was monotonically associated with SRH in both genders, however cumulative sleep deprivation was not associated with self-reported health among young people. Young women reporting chronic exposure to sleep disturbance had over twice the odds of reporting sub-optimal health at follow-up (OR 2.18 [CI95: 1.13, 4.22]), compared to those with no history. Similar results were found in chronically sleep disturbed young men (OR 2.41 [1.05, 5.51]). These findings suggest that chronic exposure to impaired quality of sleep, such as difficulty falling or staying asleep, is related to adolescent self-reported health and thus may be an important determinant of young people's wellbeing.

Chronic sleep deprivation and gender-specific risk of depression in adolescents: a prospective population-based study.

BACKGROUND: Chronic exposure to sleep deprivation may increase the risk of depression in young people who are particularly vulnerable to changes in sleep and mental health. Sleep deprivation and incident depression may also differ by gender. We investigated the prospective association between cumulative sleep deprivation and subsequent levels of depressive symptomatology among adolescents from a gender perspective. METHODS: A longitudinal study of 3071 young people in the British Columbia Adolescent Substance Use Survey (BASUS) cohort with three sleep time and two depression measures over 12 months (2011-12). Multivariable linear regression models with interaction terms estimated gender-specific associations between self-reported chronic sleep deprivation and changes in depressive symptomatology; post-estimation analysis calculated adjusted mean depression scores for each level of cumulative sleep deprivation. RESULTS: Cumulative sleep deprivation was associated with a monotonic increase in depression scores at follow-up in young women, but no consistent pattern was seen in young men. During follow-up, 15% of young women were chronically sleep deprived and 29% were depressed (CESD ≥24). Young women reporting chronic exposure to sleep deprivation had higher CESD scores at follow-up (21.50 points, [CI95 19.55-23.45]), than those reporting no history (16.59 [15.72-17.45]); that remained after multivariable adjustment (19.48 [17.59-21.38]). CONCLUSION: Results suggested that chronic sleep deprivation increases the risk of major depression among young women. Mental health promotion for young people should include relevant strategies to ensure young women can achieve recommended amounts of sleep.

Parental correlates in child and adolescent physical activity: a meta-analysis.

OBJECTIVE: Physical activity (PA) has a profound impact on health and development in children. Parental behaviors (i.e., modeling and support) represent an obvious important factor in child PA. The purpose of this paper was to provide a comprehensive meta-analysis that overcomes the limitations of prior narrative reviews and quantitative reviews with small samples. METHODS: Ten major databases were used in the literature search. One-hundred and fifteen studies passed the eligibility criteria. Both fixed and random effects models with correction for sampling and measurement error were examined in the analysis. Moderator analyses investigating the effects of child's developmental age, study design, parental gender, measurement of child PA, and quality rating were performed. RESULTS: Based on the random effects model, the results showed that parental modeling was weakly associated with child PA (summary r = .16, 95% CI .09-.24) and none of the proposed moderators were significant. Separate analyses examining the moderating effects of parental gender and boys' PA found that that father-son PA modeling (r = .29, 95% CI .21-.36) was significantly higher compared to mother-son PA (r = .19, 95% CI .14-.23; p < .05). However, parental gender did not moderate the relationship between parental modeling and girls' PA (p > .05). The random effects model indicated an overall moderate effect size for the parental support and child PA relationship (summary r = .38, 95% CI .30-.46). Here, the only significant moderating variable was the measurement of child PA (objective: r = .20, 95% CI .13-.26; reported: r = .46, 95% CI .37-.55; p < .01). CONCLUSIONS: Parental support and modeling relate to child PA, yet our results revealed a significant degree of heterogeneity among the studies that could not be explained well by our proposed moderators.

Models accounting for intention-behavior discordance in the physical activity domain: a user's guide, content overview, and review of current evidence.

There is a growing concern among researchers with the limited effectiveness and yet subsequent stagnation of theories applied to physical activity (PA). One of the most highlighted areas of concern is the established gap between intention and PA, yet the considerable use of models that assume intention is the proximal antecedent of PA. The objective of this review was to: 1) provide a guide and thematic analysis of the available models that include constructs that address intention-behavior discordance and 2) highlight the evidence for these structures in the PA domain. A literature search was conducted among 13 major databases to locate relevant models and PA studies published before August 2014. Sixteen models were identified and nine overall themes for post-intentional constructs were created. Of the 16 models, eight were applied to 36 PA studies. Early evidence supported maintenance self-efficacy, behavioral regulation strategies, affective judgments, perceived control/opportunity, habit, and extraversion as reliable predictors of post-intention PA. Several intention-behavior discordance models exist within the literature, but are not used frequently. Further efforts are needed to test these models, preferably with experimental designs.