Manca Lucy, Marques-Vidal Pedro
Lausanne University Hospital (CHUV), University of Lausanne, 1011 Lausanne, Switzerland.
Int J Environ Res Public Health. 2025 Aug 8;22(8):1237. doi: 10.3390/ijerph22081237.
BACKGROUND/OBJECTIVES: We investigated the effect of weight misperception or dissatisfaction among individuals of normal BMI on their long-term weight changes.
Data from the three follow-ups of the CoLaus|PsyCoLaus study (2009-2012, 2014-2017, and 2018-2021) conducted in Lausanne, Switzerland. Participants with a BMI < 25 kg/m were eligible. Weight misperception/dissatisfaction was assessed by questionnaires. Weight change over a 5- or 10-year period was categorized as stable (±5 kg), loss (<-5 kg), or gain (>+5 kg).
Overall, 1826 (66.1% women, 55.9 ± 9.9 years) and 1089 (62.7% women, 61.2 ± 9.6 years) participants of surveys 2009-2012 and 2014-2017, respectively, were retained for analysis. Prevalence of weight misperception was 15.9% (95% CI: 14.2-17.6) and 11.5% (95% CI: 9.6-13.5) in 2009-2012 and 2014-2017, respectively. The corresponding values for weight dissatisfaction were 28.9% (95% CI: 26.8-31.0) and 20.9% (95% CI: 18.6-23.5). After multivariable analysis, participants with weight misperception/dissatisfaction had a higher likelihood ( < 0.05) of presenting with weight loss: for weight misperception, odds ratio and 95% CI: 2.29 (1.30-4.02) and 2.66 (1.24-5.69) for 2009-2012 and 2014-2017, respectively; the corresponding values for weight dissatisfaction were 2.02 (1.22-3.35) and 2.40 (1.23-4.65). No associations between weight misperception/dissatisfaction with weight gain were found.
Our study found that weight misperception/dissatisfaction in normal-weight, middle-aged individuals was associated with weight loss over time.
背景/目的：我们研究了正常体重指数个体的体重误判或体重不满对其长期体重变化的影响。
数据来自于在瑞士洛桑进行的CoLaus|PsyCoLaus研究的三次随访（2009 - 2012年、2014 - 2017年和2018 - 2021年）。体重指数（BMI）<25 kg/m²的参与者符合条件。通过问卷调查评估体重误判/不满情况。将5年或10年期间的体重变化分为稳定（±5 kg）、减轻（<-5 kg）或增加（>+5 kg）。
总体而言，分别保留了2009 - 2012年调查的1826名参与者（66.1%为女性，年龄55.9±9.9岁）和2014 - 2017年调查的1089名参与者（62.7%为女性，年龄61.2±9.6岁）进行分析。2009 - 2012年和2014 - 2017年体重误判的患病率分别为15.9%（95%置信区间：14.2 - 17.6）和11.5%（95%置信区间：9.6 - 13.5）。体重不满的相应数值分别为28.9%（95%置信区间：26.8 - 31.0）和20.9%（95%置信区间：18.6 - 23.5）。多变量分析后，体重误判/不满的参与者出现体重减轻的可能性更高（P<0.05）：对于体重误判，2009 - 2012年的比值比及95%置信区间为2.29（1.30 - 4.02），2014 - 2017年为2.66（1.24 - 5.69）；体重不满的相应数值分别为2.02（1.22 - 3.35）和2.40（1.23 - 4.65）。未发现体重误判/不满与体重增加之间存在关联。
我们的研究发现，正常体重的中年个体的体重误判/不满与体重随时间减轻有关。
