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Table 2 Sample sizes and mean and standard deviations (SD) for weight, height, BMI, waist circumference (WC) and waist-to-height ratio (WHTR) for Hong Kong Chinese children aged 6 to 18 y

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

Sex Age n Weight (kg) Height (cm) BMI WC (cm) WHTR
Boys 6 402 23.9 (4.7) 120.4 (5.5) 16.2 (2.4) 53.7 (5.4) 0.45 (0.04)
(n = 7472) 7 520 26.4 (6.1) 125.7 (5.9) 16.6 (2.7) 55.4 (6.6) 0.44 (0.04)
  8 572 29.3 (6.7) 130.7 (5.9) 17.0 (2.9) 56.9 (6.8) 0.43 (0.05)
  9 629 32.7 (7.8) 135.6 (6.0) 17.6 (3.2) 59.5 (7.8) 0.44 (0.06)
  10 627 37.5 (9.6) 141.2 (6.9) 18.7 (3.7) 62.4 (9.1) 0.44 (0.06)
  11 644 41.8 (10.6) 147.3 (7.9) 19.1 (3.7) 64 0(9.2) 0.43 (0.05)
  12 729 46.6 (11.9) 154.1 (8.6) 19.4 (3.7) 64.6 (9.1) 0.42 (0.05)
  13 657 51.1 (11.3) 161.2 (7.9) 19.6 (3.5) 65.2 (8.2) 0.40 (0.05)
  14 632 54,9 (10.9) 166.3 (6.9) 19.8 (3.4) 66 0(7.7) 0.40 (0.04)
  15 558 59.1 (12.0) 169.8 (5.4) 20.4 (3.8) 68.1 (8.7) 0.40 (0.05)
  16 579 60.6 (11.1) 170.9 (5.8) 20.7 (3.4) 68.8 (8.2) 0.40 (0.05)
  17 553 61.5 (11.0) 171.9 (5.7) 20.8 (3.4) 69.4 (7.8) 0.40 (0.05)
  18 370 62.3 (11.0) 171.7 (5.6) 21.1 (3.3) 70.1 (7.6) 0.41 (0.04)
Girls 6 377 21.8 (3.8) 118.7 (5.1) 15.4 (1.9) 51.3 (4.2) 0.43 (0.03)
(n = 7370) 7 479 24.9 (5.1) 124.2 (5.5) 16.0 (2.5) 53.3 (5.4) 0.43 (0.04)
  8 504 27.8 (6.0) 129.9 (6.3) 16.3 (2.5) 54.6 (5.8) 0.42 (0.04)
  9 590 30.8 (6.4) 135.1 (6.3) 16.8 (2.6) 56.7 (6.0) 0.42 (0.04)
  10 584 35.3 (8.5) 141.7 (7.0) 17.4 (3.1) 58.5 (7.0) 0.41 (0.04)
  11 599 40.1 (9.3) 148.9 (7.0) 19.0 (3.2) 60.2 (6.9) 0.40 (0.04)
  12 750 44.1 (9.4) 153.1 (6.2) 18.7 (3.3) 61.2 (7.0) 0.40 (0.04)
  13 637 47.8 (8.5) 156.2 (5.4) 19.6 (3.1) 62.2 (6.5) 0.40 (0.04)
  14 656 49.0 (8.6) 157.6 (5.4) 19.7 (3.0) 62.3 (6.2) 0.40 (0.04)
  15 600 50.5 (9.1) 158.3 (5.3) 20.1 (3.3) 63.0 (6.7) 0.40 (0.04)
  16 640 50.7 (8.9) 158.3 (5.3) 20.2 (3.3) 63.2 (6.4) 0.40 (0.04)
  17 568 51.4 (9.2) 158.9 (6.7) 20.3 (3.3) 63.5 (6.3) 0.40 (0.04)
  18 386 51.3 (8.1) 158.6 (5.6) 20.4 (2.9) 63.8 (5.6) 0.40 (0.04)
  1. Age: complete age, e.g. 6 y = 6.00–6.99 y
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