Kakinami Lisa, Houle-Johnson Stephanie A, Demissie Zewditu, Santosa Sylvia, Fulton Janet E
Department of Mathematics and Statistics, Concordia University, Montreal, QC, Canada.
PERFORM Centre, Concordia University, Montreal, QC, Canada.
Prev Med Rep. 2018 Oct 28;13:11-15. doi: 10.1016/j.pmedr.2018.10.021. eCollection 2019 Mar.
Two-thirds of adolescents who are overweight or have obesity report weight loss intentions. Most report using weight loss strategies consistent with expert recommendations for obesity prevention; however whether they meet recommended fruit and vegetable (F&V) intake and physical activity (PA) recommendations is unknown. We investigated whether weight loss attempts, and weight loss strategies were associated with meeting F&V and PA recommendations. Data were from the 2010 National Youth Physical Activity and Nutrition Study, which surveyed a cross-sectional, nationally representative sample of U.S. high school students. Analyses were restricted to overweight/obese students ( = 2841). Adjusted logistic regression models assessed the odds of meeting daily F&V and weekly PA recommendations after adjusting for grade, sex, race/ethnicity and perceived weight status. Compared to students who were overweight and were not currently intending to lose weight, students who were overweight and intending to lose weight were not more likely to meet F&V or PA. Among students with obesity, those who intended to lose weight were more likely than students who were not currently intending to lose weight to meet F&V recommendations (OR: 3.62, 95% CI: 1.70-7.73). Students who were overweight/obese and used F&V or PA for weight loss were significantly more likely to meet the corresponding recommendation than students intending to lose weight without specific strategies. Weight loss attempts alone do not affect the likelihood of meeting most expert recommendations. Public health efforts emphasizing recommended strategies for healthy eating and active living still need to be encouraged for overweight/obese youth.
三分之二超重或肥胖的青少年表示有减肥意愿。大多数人报告称使用的减肥策略符合预防肥胖的专家建议；然而，他们是否达到了推荐的水果和蔬菜（F&V）摄入量以及身体活动（PA）建议尚不清楚。我们调查了减肥尝试和减肥策略是否与达到F&V和PA建议相关。数据来自2010年全国青少年身体活动与营养研究，该研究对美国高中生的一个具有全国代表性的横断面样本进行了调查。分析仅限于超重/肥胖学生（n = 2841）。调整后的逻辑回归模型在对年级、性别、种族/族裔和感知体重状况进行调整后，评估达到每日F&V和每周PA建议的几率。与超重且目前不打算减肥的学生相比，超重且打算减肥的学生达到F&V或PA建议的可能性并不更高。在肥胖学生中，打算减肥的学生比目前不打算减肥的学生更有可能达到F&V建议（比值比：3.62，95%置信区间：1.70 - 7.73）。超重/肥胖且使用F&V或PA进行减肥的学生比没有特定策略打算减肥的学生更有可能达到相应建议。仅减肥尝试本身不会影响达到大多数专家建议的可能性。对于超重/肥胖的青少年，仍需鼓励强调健康饮食和积极生活的推荐策略的公共卫生努力。
