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Objective: To study whether the socio-ecological model based on "student-school-family" three-level strategy is effective in obesity prevention., Methods: A total of 3 175 students aged 7 to 18 from 16 schools (4 urban primary schools, 4 rural primary schools, 4 urban secondary schools and 4 rural secondary schools, of which 2 intervention schools were selected, respectively) were recruited by stratified cluster sampling method. A three-month intervention using "student-school-family" socio-ecological model was conducted through health education and environment improvement. The intervention contents included knowledge on obesity, healthy diet and physical activities. Their anthropometric indexes were recorded., Results: The intervention prevented obesity (OR=1.12, P<0.05), and was effective in waist circumference (WC) and waist-hip ratio (WHR) (adjusted difference=0.63, 0.02, P<0.05). WC and WHR were reduced in girls (adjusted difference=0.52 & 0.02, P<0.05), and obesity was prevented in girls (OR=1.18, P<0.05). WC and WHR were reduced in boys (adjusted difference=0.73, 0.01, P<0.05). WHR were reduced in urban areas (adjusted difference=0.01, P<0.05). WC and WHR were reduced (adjusted difference=1.05, 0.02, P<0.05) and obesity was prevented (OR=1.18, P<0.05) in rural areas. WHR were reduced (adjusted difference=0.01, P<0.05) and obesity was prevented (OR=1.21, P<0.05) in primary schools. WHR were reduced in secondary schools (adjusted difference=0.02, P<0.05).The intervention effect was better in girls than in boys, in rural areas than in urban areas, and in primary schools than in secondary schools. The overweight and obesity prevalence went down after the intervention (χ2=11.01, P<0.01)., Conclusion: Intervention strategy is effective in central obesity indexes such as WC and WHR, and it can be used widely.

Background & Problems: Over half (57.14%) of patients in our ward suffer from abdominal obesity. This rate is on a continuing upward trend. Reasons for such obesity include lack of physical activity classes, inadequate physical activity, high calorie diets and unhealthy eating habits, chronic diseases and drug side effects, poor motivation to reduce weight, and lack of crisis awareness of abdominal obesity., Purpose: This project was designed to lessen the problem of abdominal obesity among psychiatric day care inpatients., Resolution: Resolution measures implemented included: (1) arranging aerobic exercise classes; (2) scheduling classes to teach patients healthy diet habits and knowledge regarding diseases and drugs; (3) holding a waistline reduction competition; (4) displaying health education bulletin boards; (5) holding a quiz contest with prizes for correct answers., Results: The eight abdominally obese patients in the ward achieved an average waist circumference reduction of 2.9 cm and the overall abdominal obesity rate in the ward fell to 35.7%. BMI, eating habits, and awareness of weight loss importance and motivation all improved. The outcome achieved targeted project objectives., Conclusions: We recommend the integration of obesity prevention into routine ward activities and quality control indicators. Nurses should provide patients with weight loss concepts, regularly monitor risk factors, and encourage patient family cooperation to maintain medical care quality.