Mendes Vânia, Araújo Joana, Lopes Carla, Ramos Elisabete
Department of Clinical Epidemiology, Predictive Medicine and Public Health, University of Porto Medical School, Porto, Portugal; Institute of Public Health, University of Porto, Porto, Portugal.
Department of Clinical Epidemiology, Predictive Medicine and Public Health, University of Porto Medical School, Porto, Portugal; Institute of Public Health, University of Porto, Porto, Portugal.
J Adolesc Health. 2014 Mar;54(3):360-3. doi: 10.1016/j.jadohealth.2013.12.003.
To prospectively assess characteristics associated with dieting behaviors in adolescence.
We analyzed 1,640 adolescents evaluated at 13 and 17 years old (EPITeen cohort), Porto, Portugal. Dieting was assessed only at 17 years, as self-reported frequency of dieting to lose weight in the previous 12 months. The association between participants' characteristics and dieting was summarized using multinomial logistic regression for girls and binary logistic regression for boys.
Dieting at 17 years old was significantly more prevalent in girls than in boys (respectively 27.6% and 10.5% for occasional dieting and 12.2% and 2.6% for frequent dieting). In both sexes, overweight and obese adolescents were significantly more likely to engage in dieting but body dissatisfaction was the strongest determinant among girls. Furthermore, dieting frequency also increased with depressive symptomatology and among those involved in health compromising behaviors.
Besides body mass index, body image concerns and depressive symptomatology predict dieting throughout adolescence.
前瞻性评估与青少年节食行为相关的特征。
我们分析了葡萄牙波尔图1640名13岁和17岁接受评估的青少年（EPITeen队列）。仅在17岁时评估节食情况，以自我报告过去12个月内为减肥而节食的频率。使用多项逻辑回归分析女孩参与者特征与节食之间的关联，使用二元逻辑回归分析男孩的情况。
17岁时节食在女孩中比在男孩中更为普遍（偶尔节食分别为27.6%和10.5%，频繁节食分别为12.2%和2.6%）。在两性中，超重和肥胖青少年节食的可能性显著更高，但身体不满意是女孩中最强的决定因素。此外，节食频率也随着抑郁症状以及参与危害健康行为的情况而增加。
除体重指数外，身体形象担忧和抑郁症状可预测整个青春期的节食行为。
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