Table 1

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

BMI = body mass index; WC = waist circumference.

*p < 0.05 for difference between boys and girls.

**p < 0.001 for difference between boys and girls.

Post-Hoc Tests (Tukey HSD for continuous determinants and cross-tabulation (2x2) for dichotomous determinants):

A = difference between ‘overweight BMI and WC’ and ‘BMI only’.

B = difference between ‘overweight BMI and WC’ and ‘WC only’.

C = difference between ‘overweight BMI and WC’ and ‘not-overweight BMI and WC’.

D = difference between ‘BMI only’ and ‘WC only’.

E = difference between ‘BMI only’ and ‘not-overweight BMI and WC’.

F = difference between ‘WC only’ and ‘not-overweight BMI and WC’.

ap < 0.05 for A and C.

bp < 0.001 for A, C, D and F.

cp < 0.001 for A, B, C, E, and F.

dp < 0.001 for A, B, C, D, E and F.

ep < 0.05 for B and D, p < 0.001 for C and E.

fp < 0.05 for B, D and F, p < 0.01 for E, p < 0.001 for C .

gp < 0.05 for E, p < 0.001 for A, C, D, and F.

hp < 0.01 for D, p < 0.001 for A, B, C, E and F.

ip < 0.01 for C.

jp < 0.05 for E, p < 0.001 for C.

Veldhuis et al.

Veldhuis et al. BMC Pediatrics 2013 13:63   doi:10.1186/1471-2431-13-63

Open Data