Bhammar Dharini M, Bernhardt Vipa, Stickford Jonathon L, Miller Charles, Babb Tony G
Department of Kinesiology and Nutrition Sciences, School of Integrated Health Sciences, University of Nevada, USA.
Department of Health and Human Performance, Texas A&M University-Commerce, USA.
J Obes Weight Loss Ther. 2021;11(2). Epub 2021 Feb 28.
The objective of this paper is to present data on participant recruitment, retention, and weight loss success during a psychophysiological study in women with obesity.
Volunteers were women with obesity, 20 - 45 yr, with a BMI between 30 - 45 kg/m. The study was approximately 20 weeks in duration, including a 12-week weight loss program.
Recruitment was not completed until 8 months past the original projected date of 12 months. The study was not completed until 11 months past the original projected completion date of 14 months. On average 4.4 ± 2.1 (mean ± SD) volunteers were consented per month (N = 99) and 2.5 ± 1.1 participants started the weight loss program per month. 24% of consented volunteers were lost due to exclusion criteria, withdrawals, and unresponsive behavior before starting the weight loss program. Attrition of participants who started the weight loss program was 45%. Only 11% of those who started the program were unable to lose weight (N = 6).
Recruiting and/or weight loss success do not always present the most challenging aspects of completing a psychophysiological weight loss intervention. While participant attrition during a weight loss program can occur for a wide range of reasons supportive efforts in the early phases of the intervention may maximize retention.
本文旨在呈现一项针对肥胖女性的心理生理学研究中参与者招募、留存情况以及减肥成功率的数据。
志愿者为年龄在20至45岁之间、体重指数（BMI）在30至45kg/m之间的肥胖女性。该研究为期约20周，包括一个为期12周的减肥项目。
招募工作直到比原计划的12个月晚了8个月才完成。该研究直到比原计划的14个月晚了11个月才完成。平均每月有4.4±2.1（均值±标准差）名志愿者同意参与（N = 99），每月有2.5±1.1名参与者开始减肥项目。24%同意参与的志愿者在开始减肥项目前因排除标准、退出和无反应行为而流失。开始减肥项目的参与者流失率为45%。开始该项目的人中只有11%未能减肥（N = 6）。
招募和/或减肥成功并不总是完成心理生理学减肥干预最具挑战性的方面。虽然减肥项目期间参与者流失可能有多种原因，但在干预早期阶段的支持性努力可能会使留存率最大化。
