From: Waist circumference and risk of elevated blood pressure in children: a cross-sectional study
 | Quartiles |  | |||
---|---|---|---|---|---|
 | 1st | 2nd | 3rd | 4th |  |
 | Mean ± SD | Mean ± SD | Mean ± SD | Mean ± SD | p -value |
Boys | Â | Â | Â | Â | Â |
   Number | 381 | 286 | 257 | 288 |  |
   Age, years | 6.4 ± 0.3 | 6.4 ± 0.3 | 6.5 ± 0.5 | 6.4 ± 1.4 | 0.0007 |
   Height, cm | 117.6 ± 4.6 | 119.3 ± 4.4 | 121.2 ± 4.8 | 123.4 ± 4.5 | < 0.0001 |
   Weight, kg | 20.9 ± 2.4 | 22.5 ± 2.4 | 24.8 ± 3.1 | 31.0 ± 5.3 | < 0.0001 |
   BMI, kg/m2 | 15.1 ± 1.2 | 15.8 ± 1.3 | 16.9 ± 1.7 | 20.3 ± 2.9 | < 0.0001 |
   NC, cm | 25.6 ± 1.1 | 26.3 ± 1.8 | 27.2 ± 1.3 | 29.2 ± 1.9 | < 0.0001 |
   WC, cm | 52.2 ± 1.7 | 56.0 ± 0.8 | 59.4 ± 1.1 | 67.8 ± 5.8 | < 0.0001 |
   HC, cm | 63.4 ± 3.1 | 66.1 ± 2.8 | 69.1 ± 5.1 | 76.7 ± 5.4 | < 0.0001 |
   SBP, mmHg | 95.0 ± 13.8 | 97.1 ± 13.3 | 103.6 ± 13.2 | 110.3 ± 15.6 | < 0.0001 |
   DBP, mmHg | 58.0 ± 11.4 | 60.1 ± 11.8 | 64.2 ± 11.6 | 68.4 ± 13.6 | < 0.0001 |
   E-SBP, % | 7.6 | 10.1 | 17.5 | 30.9 | < 0.0001 |
   E-DBP, % | 7.1 | 8.7 | 14.4 | 21.9 | < 0.0001 |
   EBP, % | 11.0 | 15.0 | 24.5 | 38.9 | < 0.0001 |
Girls | Â | Â | Â | Â | Â |
   Number | 294 | 286 | 273 | 269 |  |
   Age, years | 6.4 ± 0.29 | 6.5 ± 0.5 | 6.5 ± 0.3 | 6.5 ± 0.4 | 0.0747 |
   Height, cm | 116.3 ± 4.78 | 117.9 ± 4.6 | 119.3 ± 4.5 | 122.1 ± 4.8 | < 0.0001 |
   Weight, kg | 19.9 ± 2.59 | 21.4 ± 2.3 | 23.2 ± 2.8 | 28.1 ± 4.8 | < 0.0001 |
   BMI, kg/m2 | 14.7 ± 1.23 | 15.4 ± 1.3 | 16.3 ± 1.5 | 18.8 ± 2.5 | < 0.0001 |
   NC, cm | 24.8 ± 1.04 | 25.3 ± 1.1 | 25.9 ± 1.8 | 27.5 ± 1.6 | < 0.0001 |
   WC, cm | 50.3 ± 1.75 | 54.1 ± 0.8 | 57.3 ± 1.1 | 64.1 ± 4.2 | < 0.0001 |
   HC, cm | 62.8 ± 3.08 | 65.2 ± 4.6 | 68.2 ± 3.3 | 73.9 ± 5.0 | < 0.0001 |
   SBP, mmHg | 92.2 ± 14.6 | 95.2 ± 13.3 | 98.2 ± 14.0 | 103.0 ± 13.5 | < 0.0001 |
   DBP, mmHg | 57.2 ± 10.8 | 58.4 ± 11.0 | 61.3 ± 12.6 | 64.0 ± 12.2 | < 0.0001 |
   E-SBP, % | 5.1 | 8.0 | 10.3 | 19.7 | < 0.0001 |
   E-DBP, % | 5.1 | 6.6 | 8.8 | 15.2 | < 0.0001 |
   EBP, % | 6.8 | 11.9 | 13.6 | 26.8 | < 0.0001 |