Guerra Filipa, Stringhini Silvia, Vollenweider Peter, Waeber Gérard, Marques-Vidal Pedro
Faculty of Medicine, University of Lisbon, Lisbon, Portugal.
Institute of Social and Preventive Medicine, Lausanne University Hospital, Lausanne, Switzerland.
BMC Public Health. 2015 Jan 31;15:73. doi: 10.1186/s12889-015-1451-9.
In Switzerland, socio-demographic and behavioural factors are associated with obesity, but no study ever assessed their impact on weight gain using prospective data.
Data from 4,469 participants (53.0% women), aged 35 to 75 years at baseline and followed for 5.5 years. Weight gain was considered as a rate (kg/year) or as gaining ≥5 kg during the study period.
Rate of weight gain was lower among participants who were older (mean ± standard deviation: 0.46 ± 0.92, 0.33 ± 0.88, 0.21 ± 0.86 and 0.06 ± 0.74 kg/year in participants aged [35-45], [45-55], [55-65] and [65+] years, respectively, P<0.001); physically active (0.27 ± 0.82 vs. 0.35 ± 0.95 kg/year for sedentary, P < 0.005) or living in couple (0.29 ± 0.84 vs. 0.35 ± 0.96 kg/year for living single, P < 0.05), and higher among current smokers (0.41 ± 0.97, 0.26 ± 0.84 and 0.29±0.85 kg/year for current, former and never smokers, respectively, p<0.001). These findings were further confirmed by multivariable analysis. Multivariable logistic regression showed that receiving social help, being a current smoker or obese increased the likelihood of gaining ≥5 Kg: Odds ratio (OR) and 95% confidence interval (CI) 1.43 (1.16-1.77); 1.63 (1.35-1.95) and 1.95 (1.57-2.43), respectively, while living in couple or being physically active decreased the risk: 0.73 (0.62-0.86) and 0.72 (0.62-0.83), respectively. No association was found between weight gain and gender, being born in Switzerland or education.
In Switzerland, financial difficulties (indicated by receiving social help) and current smoking were associated with increases in body weight over a 5 years follow-up. Living in couple, being older or physically active were protective against weight gain.
在瑞士，社会人口统计学和行为因素与肥胖相关，但尚无研究使用前瞻性数据评估它们对体重增加的影响。
对4469名参与者（53.0%为女性）的数据进行分析，这些参与者在基线时年龄为35至75岁，随访5.5年。体重增加被视为一种速率（千克/年）或在研究期间体重增加≥5千克。
年龄较大的参与者体重增加速率较低（平均±标准差：年龄在[35 - 45]、[45 - 55]、[55 - 65]和[65岁及以上]的参与者分别为0.46±0.92、0.33±0.88、0.21±0.86和0.06±0.74千克/年，P<0.001）；身体活跃的参与者（0.27±0.82千克/年，久坐不动者为0.35±0.95千克/年，P<0.005）或已婚者（0.29±0.84千克/年，单身者为0.35±0.96千克/年，P<0.05）体重增加速率较低，而当前吸烟者体重增加速率较高（当前吸烟者、既往吸烟者和从不吸烟者分别为0.41±0.97、0.26±0.84和0.29±0.85千克/年，p<0.001）。多变量分析进一步证实了这些发现。多变量逻辑回归显示，接受社会帮助、当前吸烟或肥胖会增加体重增加≥5千克的可能性：优势比（OR）和95%置信区间（CI）分别为1.43（1.16 - 1.77）；1.63（1.35 - 1.95）和1.95（1.57 - 2.43），而已婚或身体活跃则会降低风险：分别为0.73（0.62 - 0.86）和0.72（0.62 - 0.83）。未发现体重增加与性别、在瑞士出生或教育程度之间存在关联。
在瑞士，经济困难（以接受社会帮助表示）和当前吸烟与5年随访期间体重增加有关。已婚、年龄较大或身体活跃可预防体重增加。
