Table 1.
Age, screen time and anthropometric characteristics of the sample (n = 1278; 630 boys, 648 girls).
| Baseline | Follow-up | |||||
| Characteristic | Total sample | Males | Females | Total sample | Males | Females |
| Age (yrs) [m (SD)] | 7.6 (1.2) | 7.7 (1.2) | 7.5 (1.2) | 10.7 (1.2) | 10.8 (1.2) | 10.7 (1.2) |
| TV viewing (hrs/wk) [m (SD)] | 14.0 (7.6) | 14.4 (7.8) | 13.7 (7.5) | 15.2 (7.1) | 15.2 (7.3) | 15.2 (6.8) |
| Games/computer (hrs/wk) [m (SD)] | 3.9 (4.1) | 4.9 (4.5) | 3.0 (3.3) | 8.5 (6.9) | 10.6 (7.4) | 6.3 (5.6) |
| Total screen time (hrs/wk) [m (SD)] | 18.0 (9.2) | 19.3 (9.6) | 16.7 (8.6) | 23.7 (10.7) | 25.8 (11.5) | 21.6 (9.3) |
| Meet guidelines [n (%)]* | 509 (40) | 220 (35) | 289 (45) | 226 (18) | 73 (12) | 153 (24) |
| BMI z-score [m (SD)] | 0.4 (0.9) | 0.5 (0.8) | 0.4 (0.9) | 0.4 (0.9) | 0.4 (0.9) | 0.3 (0.9) |
| BMI category [n (%)]: | ||||||
| Not overweight | 959 (81) | 478 (82) | 481 (79) | 953 (76) | 483 (78) | 470 (74) |
| Overweight | 178 (15) | 83 (14) | 95 (16) | 246 (20) | 112 (18) | 134 (21) |
| Obese | 51 (4) | 22 (4) | 29 (5) | 52 (4) | 24 (4) | 28 (4) |
*Australian Physical Activity Recommendations for children indicate no more than 2 hrs per day should be spent engaged in electronic media use [5].