Department of Health Statistics, Second Military Medical University, Shanghai, China.
Eur J Public Health. 2012 Aug;22(4):497-502. doi: 10.1093/eurpub/ckr080. Epub 2011 Jun 25.
To investigate the relationship between obesity and health-related quality of life (HRQL) in a randomly selected Chinese sample.
A total of 3600 residents aged 18-80 years were sampled in five cities of China using a randomized stratified multiple-stage sampling method to receive the interview, with a self-completed questionnaire to collect demographic information, and the Mandarin version of Short Form 36 Health Survey questionnaire (SF-36) to assess HRQL, followed by height and weight measurements for calculating body mass index (BMI). Cross-sectional association between BMI and HRQL was analysed.
Among the 3207 participants (mean age 42 years) suitable for analysis, BMI differed by age and gender. Based on the international or the Asian BMI categories, in women, meaningful impairments were seen between obese and normal weight participants in four physical health scales, and only one scale of the four mental health scales--vitality scale was affected by obesity; in men, impairments by obesity were not found in all of the eight SF-36 scales, and better HRQL in two mental health scales were observed in obese participants compared to normal weight ones; after adjusting related variables, several physical but not mental health scales were found impaired by obesity.
Obesity impaired physical but not mental health, and the impairments varied between genders. Public health agencies and government should emphasize the impairments of obesity on physical health.
本研究旨在调查中国随机抽样人群中肥胖与健康相关生活质量（HRQL）的关系。
采用随机分层多阶段抽样方法，在中国五个城市抽取 3600 名 18-80 岁的居民进行访谈，采用自填式问卷收集人口统计学信息，并使用中文简化版 36 项健康调查量表（SF-36）评估 HRQL，同时测量身高和体重以计算体重指数（BMI）。分析 BMI 与 HRQL 之间的横断面关联。
在适合分析的 3207 名参与者（平均年龄 42 岁）中，BMI 因年龄和性别而异。根据国际或亚洲 BMI 分类标准，在女性中，肥胖组与正常体重组在四个生理健康量表中存在显著差异，而四个心理健康量表中的活力量表仅受到肥胖的影响；在男性中，肥胖对所有八个 SF-36 量表均未产生影响，肥胖组在两个心理健康量表中的 HRQL 优于正常体重组；调整相关变量后，发现几个生理健康量表受到肥胖的影响。
肥胖会损害生理健康，但不会损害心理健康，且这种损害在性别之间存在差异。公共卫生机构和政府应重视肥胖对身体健康的损害。
