Dataset Information

Prevalence of overweight and obesity and weight loss practice among Beijing adults, 2011.

ABSTRACT:

Objective

This study aims to determine the up-to-date prevalence of overweight and obesity, the distributions of body weight perception and weight loss practice in Beijing adults.

Methods

A cross-sectional study was conducted in 2011. A total of 2563 men and 4088 women aged 18-79 years from the general population were included. Data were obtained from questionnaire and physical examination.

Results

The prevalence of overweight (BMI 24-27.9 kg/m(2)) and obesity (BMI ? 28 kg/m(2)) was 42.1% and 20.3% in men and 35.6% and 17.1% in women, respectively. Age was inversely associated with overweight in both sexes, and obesity in women. Education level was negatively associated with overweight and obesity in women but not in men. Only 49.1% men and 58.3% women had a correct perception of their body weight. Underestimation of body weight was more common than overestimation, especially in men, the older people, and those with low education level. The percentage of taking action to lose weight was inversely associated with men and old age, and positively associated with higher education level, higher BMI, and self-perception as "fat" (OR = 3.78 in men, OR = 2.91 in women). Only 26.1% of overweight/obese individuals took action to lose weight. The top two weight loss practices were to reduce the amount of food intake and exercise.

Conclusion

Overweight and obesity were highly prevalent with high incorrect body weight perceptions in the general adult population in Beijing. Weight loss practice was poor in overweight and obese individuals. Actions at multiple levels are needed to slow or control this overweight and obesity epidemic.

SUBMITTER: Cai L

PROVIDER: S-EPMC4165756 | biostudies-literature | 2014

REPOSITORIES: biostudies-literature

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Publications

Prevalence of overweight and obesity and weight loss practice among Beijing adults, 2011.

Cai Li L Han Xiaoyan X Qi Zhi Z Li Zhe Z Zhang Yumei Y Wang Peiyu P Liu Aiping A

PloS one 20140916 9

<h4>Objective</h4>This study aims to determine the up-to-date prevalence of overweight and obesity, the distributions of body weight perception and weight loss practice in Beijing adults.<h4>Methods</h4>A cross-sectional study was conducted in 2011. A total of 2563 men and 4088 women aged 18-79 years from the general population were included. Data were obtained from questionnaire and physical examination.<h4>Results</h4>The prevalence of overweight (BMI 24-27.9 kg/m(2)) and obesity (BMI ≥ 28 kg/ ...[more]

PMID: 25225884

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Project description:ImportanceOverweight and obesity, conditions with rising prevalence in many countries, are associated with increased colorectal cancer (CRC) risk. However, many patients with CRC lose weight before diagnosis, which may lead the association to be underestimated.ObjectiveTo evaluate the association of body mass index (BMI) and weight change with CRC risk when considering BMI at different time frames, with the intention to account for prediagnostic weight loss.Design, setting, and participantsThis population-based case-control study was conducted in southwestern Germany between 2003 and 2021. Cases with a first diagnosis of CRC and controls (frequency matched by age, sex, and county) with comprehensive risk factor information and self-reported weight at different time points were included. Data were analyzed between October 2022 and March 2023.ExposureBMI and weight change at different time frames before the time of diagnosis (cases) or recruitment (controls).Main outcomes and measuresAssociation of BMI and weight change at various points in time before and up to diagnosis with CRC, assessed by multivariable logistic regression with comprehensive confounder adjustment.ResultsA total of 11 887 participants (6434 CRC cases, 5453 controls; median [IQR] age, 69 [61-77] years; 7173 male [60.3%]) were included. At the time of diagnosis, 3998 cases (62.1%) and 3601 controls (66.0%) were overweight or obese, suggesting an inverse association between excess weight and CRC risk. Conversely, we found significant positive associations of overweight (adjusted odds ratio [aOR], 1.27; 95% CI, 1.03-1.56), obesity (aOR, 2.09; 95% CI, 1.61-2.70), and a 5-unit increase in BMI (aOR, 1.35; 95% CI, 1.21-1.50) with CRC risk when using BMI measured 8 to 10 years before diagnosis. High BMI as a risk factor for CRC was increased as earlier periods before diagnosis were examined, with the association being particularly pronounced using BMI at least 8 years before diagnosis. An opposite trend was found for the association of weight loss (at or exceeding 2 kg) with CRC, with the greatest effect sizes occurring for weight loss within 2 years before diagnosis (aOR, 7.52; 95% CI, 5.61-10.09), and gradually decreased for earlier intervals.Conclusions and relevanceIn this population-based case-control study, accounting for substantial prediagnostic weight loss further highlighted the association of overweight and obesity with CRC risk.

Dataset Information

Prevalence of overweight and obesity and weight loss practice among Beijing adults, 2011.

Objective

Methods

Results

Conclusion

Publications

Prevalence of overweight and obesity and weight loss practice among Beijing adults, 2011.

Similar Datasets

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