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Table 1 The 10 articles included in the pooled analysis

From: Upper arm circumference development in Chinese children and adolescents: a pooled analysis

Order Sitting Areas of China Data collection Age(interval) N (total) N (boys) N (girls) Presentation Method of measurements Relative measuring
1 BJ Capital Beijing Cluster sampling in schools and kindergartens in urban and suburban 3–18 years (1 year) 19,705 10,151 9554 Dissertation 2009 Mid-upper arm circumference Height, weight
2 SX(U,R) Yangquan city of Shanxi province of central north Hierarchy cluster sampling in 101 survey sets 0–5 years (0–6 months (1 months), 6–12 months (2 months), 1–2 years (3 months), 3–5 years (6 months)) 6334 3262 3072 Pan 2011 Mid-upper arm circumference Height, weight, circumference of chest and head
3 AH Anhui province of central south Random cluster sampling in 3 elementary schools and 2 junior high schools 6–17 years (2 years) 4476 2275 2201 Jiang 2002 Mid-upper arm circumference Height, weight, circumference of chest, triceps skin-fold thickness
4 SZ Suzhou city in Jiangsu province in Yangtze north Cluster sampling in kindergartens 3–6 years (1 years) 1061 577 484 Liu 1988 Mid-upper arm circumference Height, weight
5 ZJ Zhejiang province in Yangtze south Random sampling 1–3grade in 16 elementary schools 6–10 years (1 years) 1515 843 672 Tan 2004 Mid-upper arm circumference Height, weight
6 IM Hohhot city of Inner Mongolia of Northwest Random sampling in 10 kindergartens 3–7 years (6 months) 3662 1936 1726 Wuyunrle 2000 Mid-upper arm circumference Nine circumferences of chest, head, waist, and so on
7 LN Dalian city of Liaoning province of Northeast Random sampling 7–17 years (1 years) 1203 594 609 Xu 2000 Mid-upper arm circumference in Shao’s version Four circumferences of chest, hip, minimum-waist, maximum-leg
8 GX(Miao) Miao nationality in Guangxi municipality in Southwest Miao nationality sampling 8–16 years (1 years) 814 454 360 Huang 2005 Mid-upper arm circumference in Wu Rukang’s version Height, weight, skin-fold thickness, body fat
9 GX(Zhuang) Zhuang nationality municipality of Guangxi of Southwest Random sampling in 21 schools in 4 counties in 2 cities 7–18 years (1 years) 12,339 6825 5514 Tan 1994 Mid-upper arm circumference Height, weight
10 GD Guangzhou city of Guangdong province of Southeast 2 hierarchy cluster sampling in 10 kindergartens 4–8 years (1 years) 9108 4780 4328 Su 2003 Mid-upper arm circumference Height, weight, skin-fold thickness