Table 1 Descriptive characteristics of participants.
Males | Females | All | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
Grade 7 | Grade 9 | Grade 11 | Grade 7 | Grade 9 | Grade 11 | Grade 7 | Grade 9 | Grade 11 | ||
Complete cases | N = 772 | N = 760 | N = 499 | N = 650 | N = 662 | N = 417 | N = 1422 | N = 1422 | N = 916 | |
Deprivation (IMD) | Mean (SD) | 11.6 (7.3) | 11.7 (7.3) | 11.3 (7.2) | 11.4 (6.9) | 11.3 (6.9) | 11.2 (6.8) | 11.5 (7.1) | 11.5 (7.1) | 11.3 (7.0) |
Age (years) | Mean (SD) | 12.0 (.5) | 14.0 (.4) | 15.9 (.4) | 12.0 (.4) | 14.0 (.4) | 15.9 (.4) | 12.0 (.4) | 14.0 (.4) | 15.9 (.4) |
Stature (cm) | Mean (SD) | 151.1 (7.7) | 163.0 (8.1) | 166.4 (7.7) | 152.2 (7.2) | 161.8 (7.8) | 165.1 (7.6) | 151.6 (7.5) | 162.4 (8.0) | 165.8 (7.6) |
Body mass (kg) | Mean (SD) | 43.9 (10.0) | 53.9 (9.1) | 57.1 (7.1) | 45.4 (9.4) | 53.4 (9.1) | 56.4 (6.9) | 44.6 (9.8) | 53.7 (9.1) | 56.8 (7.0) |
BMI (kg/m2) | Mean (SD) | 19.1 (3.5) | 20.3 (2.9) | 20.6 (2.3) | 19.5 (3.2) | 20.4 (3.0) | 20.7 (2.2) | 19.3 (3.4) | 20.3 (3.0) | 20.7 (2.3) |
Waist (cm) | Mean (SD) | 66.8 (8.0) | 70.1 (6.9) | 71.8 (5.5) | 64.8 (8.1) | 68.9 (6.9) | 71.4 (5.4) | 65.9 (8.1) | 69.5 (6.9) | 71.6 (5.5) |
Physical activity (PAQ) | Mean (SD) | 3.0 (0.5) | 2.7 (0.5) | 2.6 (0.5) | 2.7 (0.5) | 2.6 (0.5) | 2.4 (0.4) | 2.9 (0.5) | 2.7 (0.5) | 2.5 (0.5) |
Systolic BP (mmHg) | Mean (SD) | 114.5 (8.5) | 118.3 (9.8) | 123.3 (7.9) | 114.6 (9.4) | 117.9 (9.7) | 122.3 (7.6) | 114.6 (8.9) | 118.1 (9.7) | 122.8 (7.8) |
Diastolic BP (mmHg) | Mean (SD) | 66.1 (6.4) | 68.0 (6.3) | 69.9 (5.4) | 67.4 (6.9) | 68.0 (6.6) | 70.0 (5.0) | 66.7 (6.6) | 68.0 (6.4) | 70.0 (5.2) |
