Publications by authors named "David J Dewit"

This study explored three-year trajectories of social anxiety symptoms among youth with chronic health conditions and investigated factors influencing those trajectories. Participants ( = 439) were recruited from eight pediatric rehabilitation centers. The Social Anxiety Scale for Children-Revised measured social anxiety across four time points.

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We compared the mentoring experiences and mental health and behavioral outcomes associated with program-supported mentoring for 125 Aboriginal (AB) and 734 non-Aboriginal (non-AB) youth ages 6-17 participating in a national survey of Big Brothers Big Sisters community mentoring relationships. Parents or guardians reported on youth mental health and other outcomes at baseline (before youth were paired to a mentor) and at 18 months follow-up. We found that AB youth were significantly less likely than non-AB youth to be in a long-term continuous mentoring relationship.

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Purpose: Objectives of this longitudinal study were to examine 3-year trajectories of global perceived quality of life (QOL) for youth with chronic health conditions, as obtained from youth and parent reports, and to identify personal and environmental factors associated with the trajectory groups for each perspective.

Methods: Youth with various chronic conditions aged 11-17 years and one of their parents were recruited from eight children's treatment centers. Latent class growth analysis was used to investigate perceived QOL trajectories (separately for youth and parent perspectives) over a 3-year period (four data collection time points spaced 12 months apart).

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Previous research suggests that early mentoring relationship (MR) closures may have harmful consequences for the health and well-being of youth participating in community-based mentoring programs. However, knowledge of the factors that lead some MRs to close early has been slow to emerge. This study examined patterns and correlates of early versus on-time MR closures among 569 youth participating in Big Brothers Big Sisters community mentoring programs.

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This study examined the relationship between youth mentoring status and behavioral, developmental, and emotional outcomes for 859 youths aged 6-17 participating in a national survey of Big Brothers Big Sisters community mentoring relationships (MRs). Youth self-reported behaviors and mental health occurred at the baseline assessment (before being paired to a mentor) and at 18 months follow-up. Youth mentoring status was categorized as follows: (1) continuous MR less than 12 months (n = 131); (2) continuous MR 12 or more months (n = 253); (3) dissolved MR less than 12 months (n = 110); (4) dissolved MR 12 or more months (n = 70); 5) MR with a second mentor (re-matched; n = 83); and (6); never mentored (n = 212).

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Utilizing a random probability sample of Canadian residents aged 15-64 (n = 8116), this study assessed gender differences in the onset of social phobia and the moderating influence of gender on indicators of childhood family adversity hypothesized to increase the risk of developing the disorder. Results revealed statistically significant "gender by family adversity" interactions that varied by disorder sub-type. Among males, absence of a parent or other adult close confidant during childhood was associated with an elevated risk of developing social phobia (all diagnosed cases and the non-generalized sub-type).

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Estimation of comparative disease burden in epidemiological surveys is complicated by the fact that high comorbidities exist among many chronic conditions. The easiest way to take comorbidity into consideration is to distinguish between pure and comorbid conditions and to evaluate the incremental effects of comorbid conditions in prediction equations. This approach is illustrated here in an analysis of the effects of pure and comorbid major depression (MD) and generalized anxiety disorder (GAD) on a number of different measures of role impairment in the US National Comorbidity Survey (NCS) and the Mental Health Supplement to the Ontario (Canada) Health Survey (the Supplement).

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This study compares lifetime prevalence and age of first use (onset) for alcohol, cannabis, and other drugs in six international sites. Data from seven epidemiologic field surveys that used compatible instruments and study designs were compiled for cross-site analyses by the International Consortium of Psychiatric Epidemiology (ICPE). The world health organization's composite international diagnostic instrument (WHO-CIDI) and additional items were used to ascertain drug use in each site.

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