Prevalence of the double burden of malnutrition among primary and secondary school students in Guangzhou in the 2004-2013 academic year / 中国学校卫生

ABSTRACT

Objective@#To review the prevalence of double burden of malnutrition among primary and middle school students in Guangzhou during the school year 2004-2013,and to provide reference for nutrition intervention measures.@*Methods@#A total of 48 primary and secondary schools were selected by purposeful sampling in eight urban areas of Guangzhou. Data on height and weight of students were collected and BMI were calculated in accordance with the National Manual for Physical Fitness and Health Research and Testing. Screening Standard for Malnutrition of Chinese School-age Children Adolescents to assess growth retardation and wasting. Using Screening for Overweight and Obesity among Chinese School-age Children Adolescents to assess overweight and obesity. The rates of growth retardation, wasting, overweight, obesity were calculated by sex and age groups; Differences among groups were analyzed by using χ2 tests; The annual growth rate is calculated by using the simple sequence time average method.@*Results@#The prevalence of undernutrition among young students aged 6-18 in Guangzhou decreased from 16.74% (12 985/77 491) in 2004 to 10.69% (8 431/78 901) in 2013, with an average annual growth rate of -4.76%; The prevalence of male malnutrition decreased from 17.98% (7 011/39 004) to 11.47% (4 638/40 427); The prevalence of girls malnutrition decreased from 15.52% (5 974/38 487) to 9.86% (3 793/38 474). The detection rate of overweight and obesity increased from 13.92% (10 790/77 491) in 2004 to 20.26% (15 987/78 901), with an average annual growth rate of 4.35%. The detection rate of overweight obesity in boys increased from 17.26% (6 733/39 004) to 25.85% (10 452/40 427). The detection rate of overweight and obesity in girls increased from 10.54% (4 057/38 497) to 14.39% (5 535/38 474).@*Conclusion@#Guangzhou has stepped into one of the cities with double burden of malnutrition.