Weight-Control Methods, 3-Year Weight Change, and Eating Behaviors: A Prospective Nationwide Study of Middle-Aged New Zealand Women

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• 作者：Sook Ling Leong ; PhDAuthor Vitae ; Andrew GrayAuthor Vitae ; Jillian Haszard ; PhDAuthor Vitae ; Caroline Horwath ; PhD ; ^{caroline.horwath@otago.ac.nz" class="auth_mail" title="E-mail the corresponding author}Author Vitae
• 关键词：Weight-control methods ; Middle-aged women ; Weight change ; Longitudinal study
• 刊名：Journal of the Academy of Nutrition and Dietetics
• 出版年：2016
• 出版时间：August 2016
• 年：2016
• 卷：116
• 期：8
• 页码：1276-1284
• 全文大小：279 K

文摘

The effectiveness of women’s weight-control methods and the influences of dieting on eating behaviors remain unclear.

Objectives

Our aim was to determine the association of various weight-control methods at baseline with weight change to 3 years, and examine the association between baseline weight-control status (trying to lose weight, trying to prevent weight gain or no weight-control attempts) and changes in intuitive eating and binge eating at 3 years.

Design

A nationally representative sample of 1,601 New Zealand women (40 to 50 years) was recruited and completed a self-administered questionnaire at baseline regarding use of variety of weight-control methods. Information on demographic characteristics, weight, height, food habits, binge eating, and intuitive eating were collected at baseline and 3 years.

Statistical analyses

Linear and logistic regression models examined associations between both weight status and weight-control methods at baseline and weight change to 3 years; and baseline weight-control status and change in intuitive eating from baseline to 3 years and binge eating at 3 years. χ² tests were used to cross-sectionally compare food habits across the weight status categories at both baseline and 3 years.

Results

Trying to lose weight and the use of weight-control methods at baseline were not associated with change in body weight to 3 years. There were a few differences in the frequency of consumption of high-energy-density foods between those trying to lose or maintain weight and those not attempting weight control. Trying to lose weight at baseline was associated with a 2.0-unit (95% CI 0.7 to 3.4, P=0.003) reduction in intuitive eating scores by 3 years (potential range=21 to 105), and 224% (odds ratio=3.24; 95% CI 1.69 to 6.20; P<0.001) higher odds of binge eating at 3 years.

Conclusions

The apparent ineffectiveness of dieting and weight-control behaviors may reflect misconceptions about what constitutes healthy eating or energy-dense foods. Dieting may reduce women’s ability to recognize hunger and satiety cues and place women at increased risk of binge eating.