ScHARR, University of Sheffield, Regents Court, 30 Regent Street, Sheffield S1 4DA, UK.
J Public Health (Oxf). 2011 Dec;33(4):536-42. doi: 10.1093/pubmed/fdr030. Epub 2011 Mar 29.
Financial incentive programmes have the potential to modify health-related behaviours, including those associated with achieving weight loss. This study evaluated a pilot NHS commissioned financial incentive weight loss programme, based on the commercial Weight Wins 'Pounds for Pounds' programme.
Participants chose a weight loss plan based on their target weight. Plans ranged from 15 lb (6.8 kg) weight loss over 3 months to 50 lb (22.7 kg) weight loss over 7 months, with optional additional 'maintenance' periods. Rewards, which were received after successful plan completion, ranged from £70 to £425 per year.
Mean baseline weight for the 402 participants was 101.8 kg (SD 46.1 kg), with 77.4% having a BMI ≥30 kg/m(2). Clinically significant weight loss (≥5%) occurred in 44.8% [95% confidence interval (CI): 40.0-49.7%] of participants. Estimated mean weight loss at 12 months was 4.0 kg (95% CI: 2.4-5.6 kg) under the assumption of return-to-baseline weight for those who had left the programme before reporting a 12 month weight.
The estimated mean 12 month weight loss of 4.0 kg at 12 months is comparable to other evaluations of other non-medical weight loss interventions. A randomized controlled trial is required to evaluate the clinical and cost-effectiveness of this financial incentive scheme.
经济激励计划有可能改变与健康相关的行为，包括与减肥相关的行为。本研究评估了一项基于商业体重赢'磅对磅'计划的 NHS 委托经济激励减肥计划的试点。
参与者根据自己的目标体重选择减肥计划。计划范围从 3 个月内减轻 15 磅（6.8 公斤）到 7 个月内减轻 50 磅（22.7 公斤），可选额外的“维持”期。成功完成计划后，奖励范围从每年 70 英镑到 425 英镑不等。
402 名参与者的平均基线体重为 101.8 公斤（SD 46.1 公斤），77.4%的人 BMI≥30 kg/m²。44.8%的参与者（95%置信区间：40.0-49.7%）出现了临床显著的体重减轻（≥5%）。假设在报告 12 个月体重之前已离开计划的参与者体重恢复到基线，那么在 12 个月时估计的平均体重减轻为 4.0 公斤（95%置信区间：2.4-5.6 公斤）。
在 12 个月时估计的平均 12 个月体重减轻 4.0 公斤与其他非医疗减肥干预的其他评估相当。需要进行随机对照试验来评估这种经济激励计划的临床和成本效益。
