关键词: 营养不良, 中小学生, 患病率

Abstract: Objective To investigate the prevalence and distribution of malnutrition among middle school and primary school students in Anhui province,in order to provide reference for improving nutrition status of primary and middle school students. Methods Multi-stage cluster sampling method was applied in this research. A total of 9 980 students aged 7 to 17 years in three cities (Hefei,Chizhou,Suzhou) in north,middle and south of Anhui province were included in the investigation from September to November 2014. Data of students′ height and weight were obtained by physical examination. The prevalence rate was compared among children in different gender,age and areas groups. Results The prevalence rate of malnutrition among primary and middle school students was 13.25% in Anhui province in this investigation. The rates of stunting,slight wasting,moderate/severe wasting were 3.49%,5.61% and 4.16%,respectively. The prevalence rate of malnutrition of boys (14.65%) was significantly higher than that of girls (11.99%) (χ²=15.334,P<0.01). And the prevalence rate of malnutrition of students from rural area (15.10%) was significantly higher than that of students from urban area (11.28%) (χ²=31.608,P<0.01). Conclusions Malnutrition is prevalent in primary and middle school students in Anhui province,and the difference was significant among students from rural area and urban area. More attention and health education should be given to improve the nutrition status and promote the health of students

Key words: malnutrition, primary and middle school students, prevalence rate