Table 1 Characteristics of Canadian children and adolescents in the Canadian Health measures Survey, 2007–2009
| Â | Age, years | |||||
|---|---|---|---|---|---|---|
|  | 6 to 11 (n = 1058) | 12 to 17 (n = 792) | ||||
|  | n | Mean or % | 95 % CI | n | Mean or % | 95 % CI |
Boys, n (%) | 531 | 50.5 | 49.7, 51.4 | 416 | 54.2 | 51.9, 56.5 |
Mean systolic blood pressure (mmHg) | 1058 | 93.2 | 92.4, 93.9 | 792 | 98.7 | 97.0, 100.3 |
Mean diastolic blood pressure (mmHg) | 1058 | 60.5 | 59.7, 61.4 | 792 | 62.5 | 61.2, 63.9 |
Mean systolic blood pressure z-scores | 1058 | −0.70 | −0.75,-0.65 | 792 | −1.20 | −1.38, -1.08 |
Mean diastolic blood pressure z-scores | 1058 | 0.07 | 0.01, 0.13 | 792 | −0.22e | −0.34, -0.10 |
Mean heart rate (bpm) | 1058 | 75 | 74, 77 | 792 | 80 | 78, 81 |
Mean body mass index (kg/m2) | 1058 | 17.8 | 17.6, 18.0 | 792 | 22.0 | 21.1, 23.0 |
Mean body mass index z-scores (BMIZ) | 1058 | 0.51 | 0.41, 0.61 | 792 | 0.47e | 0.22, 0.73 |
Body mass index category, n (%) | ||||||
Normal weight (BMIZ < 84 percentile) | 733 | 67 | 63.2, 70.7 | 558 | 69.2 | 61.1, 77.3 |
Overweight (84 ≤ BMIZ < 97.7 percentile) | 195 | 20.2 | 14.9, 25.4 | 143 | 15.8 | 11.6, 19.9 |
Obese (BMIZ ≥ 97.7 percentile) | 131 | 12.9 | 9.9, 15.8 | 91 | 15.1e | 8.6, 21.6 |
Physically active, n (%) | 888 | 83.6 | 80.5, 86.6 | 424 | 55.2 | 49.3, 61.2 |
Family history of hypertension, n (%) | 161 | 13.9 | 11.2, 16.5 | 173 | 20.5 | 16.8, 24.2 |
Low family income, n (%) | 74 | 6.9e | 3.6, 10.2 | 43 | 7.0e | 3.2, 10.8 |
Post-secondary educated parents, n (%) | 856 | 79.9 | 74.2, 85.6 | 605 | 73.1 | 65.5, 80.8 |
Ethnicity - whites, n (%) | 814 | 75.4 | 62.0, 88.7 | 635 | 75.6 | 65.6, 85.6 |
Daily smoking, n (%) | – | – | – | 53 | 6.9e | 2.1, 11.7 |