How Accurate are Recalls of Self-Weighing Frequency? Data from a 24-Month Randomized Trial
How Accurate are Recalls of Self-Weighing Frequency? Data from a 24-Month Randomized Trial
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DOI:
10.1002/oby.22239
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发表时间:
2018-08-01
期刊:
影响因子:
6.9
通讯作者:
Linde, Jennifer A.
中科院分区:
文献类型:
--
作者:
Crane, Melissa M.;Gavin, Kara;Linde, Jennifer A.
Introduction: Self-weighing is an important component of self-monitoring during weight loss. However, methods of measuring self-weighing frequency need to be validated. This analysis compared self-reported and objective weighing frequency.Methods: Data came from a 24-month randomized controlled trial. Participants received 12 months of a behavioral weight-loss program and were randomly assigned to (1) daily self-weighing, (2) weekly weighing, or (3) no weighing (excluded from analysis). Objective weighing frequency was measured by Wi-Fi enabled scales, and self-reported weighing frequency was assessed every 6 months by questionnaire. Objective weights were categorized to match the scale of the self-report measure.Results: At 12 months, there was 80.8% agreement between self-reported and objective weighing frequency (weighted kappa= 0.67; P