Association between community average body mass index and perception of overweight
Association between community average body mass index and perception of overweight
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DOI：
10.1016/j.socscimed.2021.114694
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发表时间：
2022-01-14
影响因子：
5.4
通讯作者：
Wilson，Andrew
中科院分区：
文献类型：
--
作者：
Feng，Xiaoqi;Wilson，Andrew
一些证据表明，对超重的认知不足与较低的减肥水平有关。这可能是由于在平均体重指数（BMI）较高的社区进行比较，超重的“视觉正常化”，导致对超重的认知不足，反过来，这可能会防止与体重相关的负面自我认知和/或减少减肥的动力。支持这一假设的证据最初是在对3729名年龄在100岁至18岁之间的超重澳大利亚人进行精确加权多水平logistic回归分析后发现的，该分析在调整了年龄、性别和地区水平的劣势之后。BMI为-1 kg/m2或低于社区平均BMI的参与者与BMI在±1 kg/m2范围内的同龄人相比，体重相关不满（OR = 0.64, 95%CI = 0.51-0.80）和超重（OR = 0.56, 95%CI = 0.45-0.70）的几率较低。此外，与同一参照组相比，BMI为1 kg/m2或大于社区平均BMI的参与者有更高的体重相关不满（OR = 1.97, 95%CI = 1.69-2.30）和超重（OR = 2.81, 95%CI = 2.41-3.28）的几率。这些发现对男性和女性都是一致的；然而，在调整个人BMI后，它们趋于零并呈现统计学上不显著。总的来说，这些结果表明，在超重的成年人中，个人BMI，而不是个人和社区BMI之间的相对差异，是体重相关感知和满意度的更强决定因素。
Some evidence indicates under-perception of overweight is associated with lower levels of weight loss. This might be due to ‘visual normalisation’ of overweight through comparisons made in communities where average body mass index (BMI) is high, resulting in under-perception of overweight, which in turn, may protect against negative weight-related self-perceptions and/or reduce motivation to lose weight. Evidence in support of this hypothesis was found initially in a precision-weighted multilevel logistic regression analysis of 3729 overweight Australians aged >18 y, after adjusting for age, sex and area-level disadvantage. Participants whose BMI was -1 kg/m2or less than the community mean BMI had lower odds of weight-related dissatisfaction (OR = 0.64, 95%CI = 0.51–0.80) and perceived overweight (OR = 0.56, 95%CI = 0.45–0.70), compared with peers whose BMI was within ± 1 kg/m2of the community mean. Moreover, participants whose BMI was 1 kg/m2or greater than the community mean BMI had higher odds of weight-related dissatisfaction (OR = 1.97, 95%CI = 1.69–2.30) and perceived overweight (OR = 2.81, 95%CI = 2.41–3.28) when compared to the same reference group. These findings were consistent for men and women; however, they were attenuated towards the null and rendered statistically insignificant after adjustment for personal BMI. Overall, these results indicate that among adults who are overweight, personal BMI, rather than the relative difference between personal and community BMI, is the stronger determinant of weight-related perception and satisfaction.