Glover Marewa, Kira Anette, McRobbie Hayden, Kruger Rozanne, Funaki-Tahifote Mafi, Stephen Jane, Breier Bernhard H, Kira Geoff
School of Health Sciences, College of Health, Massey University, Auckland, New Zealand.
, Manawatū, New Zealand.
BMC Nutr. 2021 Sep 10;7(1):52. doi: 10.1186/s40795-021-00457-9.
Reducing obesity prevalence among marginalised subgroups with disproportionately high obesity rates is challenging. Given the promise of incentives and group-based programmes we trialled a culturally tailored, team-based weight-loss competition with New Zealand Māori (Indigenous) and Pacific Island people.
A quasi-experimental 12-months trial was designed. The intervention consisted of three six-months competitions, each with seven teams of seven members. Eligible participants were aged 16 years and older, with a BMI ≥30 kg/m and being at risk of or already diagnosed with type-2 diabetes or cardiovascular disease. Height, weight and waist circumference were measured at baseline, 6 and 12 months.
Recruitment of a control group (n = 29) versus the intervention (n = 132) was poor and retention rates were low (52 and 27% of intervention participants were followed-up at six and 12 months, respectively). Thus, analysis of the primary outcome of individual percentage weight loss was restricted to the 6-months follow-up data. Although not significant, the intervention group appeared to lose more weight than the control group, in both the intention to treat and complete-case analyses.
The intervention promoted some behaviour change in eating behaviours, and a resulting trend toward a reduction in waist circumference.
ACTRN12617000871347 Registered 15/6/2017 Retrospectively registered.
在肥胖率极高的边缘化亚群体中降低肥胖流行率具有挑战性。鉴于激励措施和基于群体的项目有望取得成效，我们对新西兰毛利人（原住民）和太平洋岛民进行了一项针对特定文化的、基于团队的减肥竞赛试验。
设计了一项为期12个月的准实验性试验。干预措施包括三场为期6个月的竞赛，每场竞赛有7个团队，每个团队7名成员。符合条件的参与者年龄在16岁及以上，体重指数（BMI）≥30kg/m²，有患2型糖尿病或心血管疾病的风险或已被诊断患有这些疾病。在基线、6个月和12个月时测量身高、体重和腰围。
对照组（n = 29）与干预组（n = 132）的招募情况不佳，留存率较低（干预组分别有52%和27%的参与者在6个月和12个月时接受了随访）。因此，个体体重减轻百分比这一主要结果的分析仅限于6个月的随访数据。在意向性分析和完全病例分析中，尽管差异不显著，但干预组似乎比对照组减重更多。
该干预措施促进了饮食行为方面的一些行为改变，并导致腰围有减小的趋势。
ACTRN12617000871347 于2017年6月15日注册 追溯注册。
