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Table 1 Characteristics of the study population and subgroups classified as overweight (obesity included) according to BMI, WC or both (n = 7703)

From: Moderate agreement between body mass index and measures of waist circumference in the identification of overweight among 5-year-old children; the ‘Be active, eat right’ study

  Boys  
  Total (n = 3895) Overweight BMI and WC (n = 168) Overweight BMI only (n = 104) Overweight WC only (n = 109) Not-overweight BMI and WC (n = 3514) p-value
Mean age, years (SD) 5.8 (0.4) 5.8 (0.4) 5.7 (0.5) 5.7 (0.4) 5.8 (0.4) 0.026a
Mean height, cm (SD) 117.8 (5.5) 122.1 (5.6) 117.8 (5.9) 121.5 (5.2) 117.5 (5.4) 0.000b
Mean weight, kg (SD) 21.6 (3.1) 28.9 (3.9) 25.3 (2.8) 24.5 (2.4) 21.0 (2.5) 0.000c
Mean BMI, kg/(m)2 (SD) 15.5 (1.4) 19.3 (1.5) 18.1 (0.9) 16.5 (0.7) 15.2 (1.0) 0.000d
Mean WC, cm (SD) 53.4 (3.7) 63.3 (4.3) 55.9 (2.2) 59.8 (1.5) 52.6 (2.8) 0.000d
Non-Dutch ethnicity, n (%) 568 (14.6) 44 (26.2) 30 (28.8) 16 (14.7) 478 (13.6) 0.000e
Parental educational level low, n (%) 845 (21.7) 60 (35.7) 33 (31.7) 25 (22.9) 727 (20.7) 0.000f
Overweight according to clinical judgment of healthcare professional, n (%) 259 (6.6) 148 (88.1) 69 (66.3) 18 (16.5) 24 (0.7) 0.000d
  Girls  
  Total (n = 3808) Overweight BMI and WC (n = 258) Overweight BMI only (n = 183) Overweight WC only (n = 128) Not-overweight BMI and WC (n = 3239) p -value
Mean age, years (SD) 5.7 (0.4)* 5.8 (0.4) 5.7 (0.4) 5.8 (0.4) 5.7 (0.4) 0.751
Mean height, cm (SD) 117.0 (5.6)** 120.8 (5.7) 117.7 (5.5) 120.5 (5.2) 116.5 (5.5) 0.000g
Mean weight, kg (SD) 21.3 (3.4)** 27.9 (3.6) 24.9 (2.5) 23.8 (2.5) 20.5 (2.5) 0.000h
Mean BMI, kg/(m)2 (SD) 15.5 (1.6) 19.0 (1.5) 17.9 (0.8) 16.3 (0.9) 15.0 (1.1) 0.000d
Mean WC, cm (SD) 53.2 (4.1)* 62.4 (4.0) 55.7 (1.8) 59.9 (1.8) 52.1 (2.8) 0.000d
Non-Dutch ethnicity, n (%) 586 (15.4) 57 (22.1) 33 (18.0) 24 (18.8) 472 (14.6) 0.005i
Parental educational level low, n (%) 842 (22.1) 91 (35.3) 54 (29.5) 30 (23.4) 667 (20.6) 0.000j
Overweight according to clinical judgment of healthcare professional, n (%) 387 (10.2)** 233 (90.3) 113 (61.7) 16 (12.5) 25 (0.8) 0.000d
  1. BMI = body mass index; WC = waist circumference.
  2. * p < 0.05 for difference between boys and girls.
  3. ** p < 0.001 for difference between boys and girls.
  4. Post-Hoc Tests (Tukey HSD for continuous determinants and cross-tabulation (2x2) for dichotomous determinants):
  5. A = difference between ‘overweight BMI and WC’ and ‘BMI only’.
  6. B = difference between ‘overweight BMI and WC’ and ‘WC only’.
  7. C = difference between ‘overweight BMI and WC’ and ‘not-overweight BMI and WC’.
  8. D = difference between ‘BMI only’ and ‘WC only’.
  9. E = difference between ‘BMI only’ and ‘not-overweight BMI and WC’.
  10. F = difference between ‘WC only’ and ‘not-overweight BMI and WC’.
  11. a p < 0.05 for A and C.
  12. b p < 0.001 for A, C, D and F.
  13. c p < 0.001 for A, B, C, E, and F.
  14. d p < 0.001 for A, B, C, D, E and F.
  15. e p < 0.05 for B and D, p < 0.001 for C and E.
  16. f p < 0.05 for B, D and F, p < 0.01 for E, p < 0.001 for C .
  17. g p < 0.05 for E, p < 0.001 for A, C, D, and F.
  18. h p < 0.01 for D, p < 0.001 for A, B, C, E and F.
  19. i p < 0.01 for C.
  20. j p < 0.05 for E, p < 0.001 for C.