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Table 5 Mean (SD) of waist height ratio at yearly intervals in Hong Kong and British children

From: Waist circumference and waist-to-height ratio of Hong Kong Chinese children

  Boys   Girls  
Age (y) HKa UKb p-value HKa UKc p-value
6 0.45(0.04) 0.45(0.03) 0.999 0.43(0.03) 0.45(0.03) < 0.0001
7 0.44(0.04) 0.44(0.03) 0.999 0.43(0.04) 0.44(0.03) < 0.0001
8 0.43(0.05) 0.43(0.03) 0.999 0.42(0.04) 0.43(0.03) 0.861
9 0.44(0.06) 0.43(0.04) 0.007 0.42(0.04) 0.42(0.03) 0.999
10 0.44(0.06) 0.43(0.04) 0.005 0.41(0.04) 0.41(0.04) 0.999
11 0.43(0.05) 0.43(0.04) 0.999 0.40(0.04) 0.41(0.04) < 0.0001
12 0.42(0.05) 0.43(0.04) 0.001 0.40(0.04) 0.41(0.03) < 0.0001
13 0.40(0.05) 0.42(0.04) < 0.0001 0.40(0.04) 0.41(0.03) < 0.0001
14 0.44(0.05) 0.42(0.04) < 0.0001 0.40(0.04) 0.40(0.03) 0.999
15 0.40(0.05) 0.42(0.04) < 0.0001 0.40(0.04) 0.40(0.03) 0.999
16 0.40(0.05) 0.42(0.04) < 0.0001 0.40(0.04) 0.41(0.03) < 0.0001
  1. aHong Kong data collected in 2005–2006, bUK boys' data collected in 1977, and c UK girls' data collected in 1987
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