Article

Weight gain continues in the 1990s: 10-Year trends in weight and overweight from the CARDIA study. Coronary Artery Risk Development in Young Adults

Division of Preventive Medicine, School of Medicine, University of Alabama at Birmingham, 35205, USA.
American Journal of Epidemiology (Impact Factor: 5.23). 07/2000; 151(12):1172-81.
Source: PubMed

ABSTRACT

The prevalence of obesity increased in the United States through the 1980s. The authors examined 10-year aging and secular (time-related) trends in the Coronary Artery Risk Development in Young Adults (CARDIA) cohort for indications of whether these trends are continuing and for ages of peak weight gain in young adults. CARDIA is a population-based, prospective study of 5,115 African-American and White men and women aged 18-30 years at baseline. Body weight and overweight prevalence were measured at five time points from 1985-1986 to 1995-1996. Linear, mixed-model regression was used to partition weight gain into that due to secular trends and that due to aging. Prevalence of overweight (body mass index (BMI) > or = 25.0 kg/m2) increased markedly, and prevalence of severe obesity (BMI > or = 40.0 kg/m2) doubled in all race-sex groups. Each race-sex group experienced significant secular weight gains, ranging from 0.96 kg/year (95% confidence interval: 79, 1.13) in African-American women to 0.55 kg/year (95% confidence interval: 0.41, 0.69) in White women. Significant secular gains were present during each follow-up period. Each race-sex group also experienced significant weight increases related to aging during their early to midtwenties. Secular trends for weight gain are continuing in CARDIA, but the magnitude of weight gain differed among the four race-sex groups.

    • "Over 32% of the US population aged 20–35 years is obese [1]. The most rapid weight gain occurs during the early adult years [2] [3]. Weight gain in adults aged 18–30 years is associated with almost 20 times greater risk of developing metabolic syndrome over the subsequent 15 years, compared to adults who maintain stable weight over that period of time [4]. "
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    ABSTRACT: Background/aims: The obesity epidemic has spread to young adults, and obesity is a significant risk factor for cardiovascular disease. The prominence and increasing functionality of mobile phones may provide an opportunity to deliver longitudinal and scalable weight management interventions in young adults. The aim of this article is to describe the design and development of the intervention tested in the Cell Phone Intervention for You study and to highlight the importance of adaptive intervention design that made it possible. The Cell Phone Intervention for You study was a National Heart, Lung, and Blood Institute–sponsored, controlled, 24-month randomized clinical trial comparing two active interventions to a usual-care control group. Participants were 365 overweight or obese (body mass index ≥ 25 kg/m2) young adults.
    No preview · Article · Jul 2015 · Clinical Trials
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    • "our sample was C0 . 9 kg , with an average weight gain of 2 . 5 kg among those who gained weight . The net weight gain observed here is consistent with weight changes reported in other studies of college students ( Lloyd - Richardson et al . , 2009 ) . Small incremental weight gain over time is associated with overweight and obesity in adulthood ( Lewis et al . , 2000 ) . Thus , our findings indicate that many students experienced clinically significant weight gain during the first nine weeks of the first semester . Our findings are limited by the use of self - reported data , which may carry risks for inaccuracy and / or expectancy bias , although quality checks were used to minimize these risks ( e"
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    ABSTRACT: We hypothesized that shorter sleep durations and greater variability in sleep patterns are associated with weight gain in the first semester of university. Students (N = 132) completed daily sleep diaries for 9 weeks, completed the MEQ (chronotype) and CES-D (depressed mood) at week 9, and self-reported weight/height (weeks 1 & 9). Mean and variability scores were calculated for sleep duration (TST, TSTv), bedtime (BT, BTv), and wake time (WT, WTv). An initial hierarchical regression evaluated (block 1) sex, ethnicity; (block 2) depressed mood, chronotype; (block 3) TST; (block 4) BT, WT; and (block 5; R(R) change = 0.09, p = 0.005) TSTv, BTv, WTv with weight change. A sex-by-TSTv interaction was found. A final model showed that ethnicity, TST, TSTv, and BTv accounted for 31% of the variance in weight change for males; TSTv was the most significant contributor (R(R) change = 0.21, p < 0.001). Daily variability in sleep duration contributes to males' weight gain. Further investigation needs to examine sex-specific outcomes for sleep and weight.
    Full-text · Article · Aug 2014 · Behavioral Sleep Medicine
    • "Over 32% of the US population aged 20–35 years is obese [1]. The most rapid weight gain occurs during the early adult years [2] [3]. Weight gain in adults aged 18–30 years is associated with almost 20 times greater risk of developing metabolic syndrome over the subsequent 15 years, compared to adults who maintain stable weight over that period of time [4]. "
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    ABSTRACT: The obesity epidemic has spread to young adults, leading to significant public health implications later in adulthood. Intervention in early adulthood may be an effective public health strategy for reducing the long-term health impact of the epidemic. Few weight loss trials have been conducted in young adults. It is unclear what weight loss strategies are beneficial in this population. To describe the design and rationale of the NHLBI-sponsored Cell Phone Intervention for You (CITY) study, which is a single center, randomized three-arm trial that compares the impact on weight loss of 1) a behavioral intervention that is delivered almost entirely via cell phone technology (Cell Phone group); and 2) a behavioral intervention delivered mainly through monthly personal coaching calls enhanced by self-monitoring via cell phone (Personal Coaching group), each compared to; 3) a usual care, advice-only control condition. A total of 365 community-dwelling overweight/obese adults aged 18-35years were randomized to receive one of these three interventions for 24 months in parallel group design. Study personnel assessing outcomes were blinded to group assignment. The primary outcome is weight change at 12 months. We hypothesize that each active intervention will cause more weight loss than the usual care condition. Study completion is anticipated in 2014. If effective, implementation of the CITY interventions could mitigate the alarming rates of obesity in young adults through promotion of weight loss. ClinicalTrial.gov: NCT01092364.
    No preview · Article · Jan 2014 · Contemporary clinical trials
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