***TASK*** the task is to summarize an input biomedical literature in six sentences 
    ***INPUT*** the input is a biomedical literature 
    ***OUTPUT*** the output is the summary of an input biomedical literature in six sentences 
    ***DOCUMENTATION*** 
    ***EXAMPLES*** 
    Input: To evaluate the efficacy of a  community-based adult obesity intervention in Angang . The intervention included health education activities among residents in a community in Anyang . 2400 and 1200 individual were r and omly selected as intervention group and control group respectively from a community in Anyang . The question nairing survey and body weight measuring were conducted and repeated at the end of the study for one year . The results showed that the awareness on the prevention of obesity was enhanced(P < 0.05 ) and mean weight of target population decreased . The community-based intervention for obesity was effective as well as feasible Background : Childhood obesity has become a nutritional problem in China since the 1990s . Aims : A family based behavioural treatment was developed and tested , to see if its use was feasible in China and to evaluate its impact on obese schoolchildren . Methods : In a single school in Beijing , 33 obese children were r and omly assigned to a treatment group and 35 to a control group . The treatment group participated in a family based behavioural treatment programme for two years . Height and weight were measured every six months for all participants . Blood pressure , cholesterol , and triglyceride levels were measured at baseline and after two years of programme implementation . Results : Body mass index ( BMI , kg/m2 ) was significantly reduced in the treatment group ( from 26.6 ( 1.7 ) to 24.0 ( 0.9 ) , 95 % CI 2.06 to 3.18 ) but not in the control group ( from 26.1 ( 1.5 ) to 26.0 ( 1.6 ) ) . Total cholesterol decreased 5.5 % and triglycerides 9.7 % in the treatment group . There was a significant correlation between change in BMI and change in triglycerides . There were no significant changes in plasma lipids in the controls . Blood pressure values also decreased significantly in the treatment , but not the control group . Conclusions : A family based behavioural intervention was feasible to use in treating obesity in schoolchildren in Beijing , China . After two years of implementation , it successfully decreased the degree of obesity , reduced levels of blood pressure , and decreased serum lipids in treatment ; there were no significant changes among control children OBJECTIVE To examine the effect of community-based health education and health promotion on body mass index ( BMI ) , overweight and obesity . METHODS We separately selected 100,000 population in Beijing , Shanghai and Changsha Cities during 1991 - 2000 . Each of the cities was then r and omly separated intervention and control community of 500,000 population . In the intervention community various kinds of health education and health promotion had been carried out . The level of knowledge , attitude and behavior ( KAB ) and body mass index ( BMI ) were evaluated . RESULTS The net increases of KAB level and regularly exercising rate in three city and different target population were statistically differences in comparison with baseline survey of 1992 , and the net decreases of the BMI , overweight rate and obesity rate of the whole population were statistically differences . CONCLUSION Health education and health promotion can effectively control the rising of population BMI , and have great meaningful for population preventing from cardio-cerebro-vascular diseases 
    Output:
    
CONCLUSIONS Comprehensive interventions with at least physical activity , dietary intervention and health education may be effective in reducing  obesity in Chinese children .