Kafatos A, Manios Y, Moschandreas J
Preventive Medicine and Nutrition Clinic, School of Medicine, University of Crete, Crete, Greece.
Eur J Clin Nutr. 2005 Sep;59(9):1090-2. doi: 10.1038/sj.ejcn.1602216.
The current study examines the long-term effects of a school-based 'Health and Nutrition Education programme' on body mass index (BMI) changes and the prevalence of overweight. The intervention group consisted of all pupils registered in the first grade of two counties of the island of Crete in 1992, while all pupils registered in a third county formed the control group. For evaluation purposes, a representative sample was examined at baseline (1992) following the 6-y intervention (1998) and 4 y after the programme's cessation (2002). The data presented here are based on pupils with full anthropometrical data in all three examination periods (284 intervention group pupils and 257 control group pupils). Former intervention group pupils had lower average BMI (by 0.7 kg/m2, s.e. 0.28, P = 0.019) at the 10-y follow-up compared to the control group subjects, while no differences were detected in the prevalence of obesity between the two groups. The findings of the current study indicate that the beneficial effects of the programme on pupils' BMI continue, to an extent, 4 years after its cessation. However, the lack of significant differences in the prevalence of overweight between the two groups indicates that the effects of the intervention may not be equally distributed in the population, with greater effects in certain subgroups and less or none in others.
本研究考察了一项以学校为基础的“健康与营养教育计划”对体重指数（BMI）变化及超重患病率的长期影响。干预组由1992年克里特岛两个县一年级注册的所有学生组成，而在第三个县注册的所有学生构成对照组。为进行评估，在基线期（1992年）、6年干预期后（1998年）以及该计划结束后4年（2002年）对一个代表性样本进行了检查。此处呈现的数据基于在所有三个检查期均有完整人体测量数据的学生（284名干预组学生和257名对照组学生）。与对照组受试者相比，前干预组学生在10年随访时的平均BMI较低（低0.7kg/m²，标准误0.28，P = 0.019），而两组之间的肥胖患病率未发现差异。本研究结果表明，该计划对学生BMI的有益影响在其结束后4年仍在一定程度上持续存在。然而，两组之间超重患病率缺乏显著差异表明，干预效果在人群中可能并非均匀分布，在某些亚组中影响较大，而在其他亚组中影响较小或无影响。
