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This study applied piecewise latent growth modeling to longitudinal survey data from 2 different samples of adolescents (N=1,002 and N=1,206) to examine the hypothesis that development of sensation seeking in middle school would predict development of substance use (cigarettes, alcohol, and marijuana) in middle school and high school. Results showed that(More)
BACKGROUND Older people are at risk for health decline and loss of independence. Lifestyle interventions offer potential for reducing such negative outcomes. The aim of this study was to determine the effectiveness and cost-effectiveness of a preventive lifestyle-based occupational therapy intervention, administered in a variety of community-based sites, in(More)
A common factor related to both substance use and obesity is neuropsychological function. Executive cognitive function (ECF) is an overarching construct that represents individual neurocognitive skills involved in self-regulated, problem-solving, and goal-directed health behavior. The current study investigates cross-sectional associations among ECF and(More)
OBJECTIVE The aim of this study was to determine sustained effectiveness in reducing depression symptoms and improving depression care 1 year following intervention completion. METHOD Of 387 low-income, predominantly Hispanic diabetes patients with major depression symptoms randomized to 12-month socioculturally adapted collaborative care (psychotherapy(More)
The aim of the study was to explore the association between perceived stress, depression and food consumption frequency. A self-administered questionnaire that included the perceived stress scale, the depression scale and dietary intake was used in the baseline survey of a cohort study of 2579 local college students over 7 cities in China. Gender and city(More)
Investigated were relations among executive cognitive function (ECF), food intake, and physical activity in 184, fourth grade children. It was hypothesized that self-reported ECF proficiency would predict greater self-reported fruit/vegetable intake and physical activity, but less "snack food" intake. Structural models demonstrated that ECF was(More)
The World Wide Web (WWW) poses a distinct capability to offer interventions tailored to the individual's characteristics. To fine tune the tailoring process, studies are needed to explore how Internet accessibility and usage are related to demographic, psychosocial, behavioral, and other health related characteristics. This study was based on a(More)
OBJECTIVE To test the efficacy of brief, safer-sex counseling by medical providers of HIV-positive patients during medical visits. SETTING Six HIV clinics in California. DESIGN Clinics were randomized to intervention arms evaluated with cohorts of randomly selected patients measured before and after the intervention. PARTICIPANTS Five-hundred and(More)