Department of Psychology, McGill University, Quebec, Canada.
Department of Educational and Counselling Psychology, McGill University, Quebec, Canada.
Obes Rev. 2018 Feb;19(2):164-177. doi: 10.1111/obr.12623. Epub 2017 Oct 27.
An increasing number of studies are investigating the efficacy of mindfulness-based interventions (MBIs) for weight loss and obesity-related eating behaviours. However, the results of past reviews are inconsistent.
To clarify these inconsistencies, we conducted a comprehensive effect-size analysis to evaluate the efficacy of MBIs on weight loss and eating behaviours.
Data sources were identified through a systematic review of studies published in journals or as dissertations in PsychINFO, PubMed, CINAHL, Web of Science, Medline and Scopus, ProQuest or OATD from the first available date to March 10, 2017.
A total of 18 publications (19 studies, n = 1,160) were included.
Mean weight loss for MBIs at post-treatment was 6.8 and 7.5 lb at follow-up. In pre-post comparisons, effect-size estimates suggest that MBIs are moderately effective for weight loss (n = 16; Hedge's g = .42; 95% CI [.26, .59], p < .000001) and largely effective in reducing obesity-related eating behaviours (n = 10; Hedge's g = .70; CI 95% [.36, 1.04], p < .00005). Larger effects on weight loss were found in studies that used a combination of informal and formal meditation practice (n = 6; Hedge's g = .55; CI 95% [.32, .77], p < .00001) compared with formal meditation practice alone (n = 4; Hedge's g = .46; CI [.10, .83], p < .05).
Results suggest that MBIs are effective in reducing weight and improving obesity-related eating behaviours among individuals with overweight and obesity. Further research is needed to examine their efficacy for weight loss maintenance.
越来越多的研究正在调查正念干预（MBIs）在减肥和与肥胖相关的饮食行为方面的疗效。然而，过去的综述结果并不一致。
为了澄清这些不一致之处，我们进行了全面的效应量分析，以评估 MBIs 对体重减轻和饮食行为的疗效。
通过对发表在 PsychINFO、PubMed、CINAHL、Web of Science、Medline 和 Scopus、ProQuest 或 OATD 期刊上的研究进行系统综述，以及对学位论文的检索，确定了数据来源。检索时间为首次可用日期至 2017 年 3 月 10 日。
共纳入 18 篇文献（19 项研究，n=1160）。
MBIs 在治疗后和随访时的平均体重减轻量分别为 6.8 和 7.5 磅。在前后自身对照比较中，效应量估计表明 MBIs 对体重减轻具有中等疗效（n=16；Hedge's g=0.42；95%置信区间[0.26，0.59]，p<0.00001），对减少与肥胖相关的饮食行为有很大疗效（n=10；Hedge's g=0.70；95%置信区间[0.36，1.04]，p<0.0005）。在使用非正式和正式冥想练习相结合的研究中（n=6；Hedge's g=0.55；95%置信区间[0.32，0.77]，p<0.0001），体重减轻的效果更大，而单独使用正式冥想练习的研究（n=4；Hedge's g=0.46；95%置信区间[0.10，0.83]，p<0.05）。
结果表明，MBIs 可有效减轻超重和肥胖个体的体重，改善与肥胖相关的饮食行为。需要进一步研究来检验它们在维持体重减轻方面的疗效。
