National epidemiological study on obesity of children aged 0-7 years in China 1996
Ding, Z.; He, Q.; Fan, Z.
Zhonghua Yi Xue Za Zhi 78(2): 121-123
1998
ISSN/ISBN: 0376-2491 PMID: 10923423 Document Number: 490417
To study on obesity of children aged 0-7 years in 11 cities in 1996. The sampling size was 208, 513. The children were divided into 9 groups: birth-, 1 mo-, 6 mo-, 1 yr, 2 yr-, 3 yr, 4 yr-, 5 yr-, 6-7 yr. The prevalence of overweight was 4.2% (M4.2%, F4.2%); and of obesity, 2.0%(M2.2% F1.9%). The obesity to overweight ratio (ORR) was 2.1%(M1.9%, F2.2%). The adiposity rebound age (ARA) was 5 years. The adiposity rebound ratio (ARR) was 3.2 for ARR1 (M2.9%, F.5%) and 2.0 for ARR2 (M1.7%, F2.4%) in obese children and 3.5 for ARR1 (M 3.5, F3.5) and 2.5 for ARR2 (M2.8, F2.8) in overweight children respectively. The secular trend of prevalence of childhood obesity during 1986-1996 showed that the prevalence of obesity increased annually at 9.1% (M10%, F8.7%). The obesity has already been a severe health and social problem of preschool children in China. The increment of prevalence of obesity during 1986-1996 has been out of control. The earlier of ARA and the larger of OOR is an important risk factor of increasing of obesity. 1 year and 5 years after birth, predicted by ARR, are two critical periods of obesity control in preschool children in China.