Table 2.
Average time spent on watching television, playing videogames and computer use by week and weekenda
| Baseline | After 18 months | After 28 months | ||||
|---|---|---|---|---|---|---|
| Intervention | Control | Intervention | Control | Intervention | Control | |
| (n = 686) | (n = 684) | (n = 616) | (n = 608) | (n = 547) | (n = 531) | |
| Screen-time | mean (SD) | mean (SD) | mean (SD) | mean (SD) | mean (SD) | mean (SD) |
| TV on a weekday (min/day) | 100.10 (81.13) | 98.20 (86.01) | 117.61 (90.11) | 128.39 (96.73) | 126.36 (96.67) | 122.09 (99.14) |
| TV on a weekend day (min/day) | 162.90 (109.23) | 162.06 (112.33) | 179.12 (113.93) | 196.57 (116.22) | 181.26 (119.27) | 190.00 (114.02) |
| Video games on a weekday (min/day) | 14.13 (34.17) | 15.39 (42.69) | 18.46 (46.41) | 20.08 (47.82) | 26.93 (67.99) | 20.90 (46.04) |
| Video games on a weekend day (min/day) | 34.50 (62.74) | 36.18 (67.33) | 45.63 (81.02) | 50.83 (83.52) | 47.71 (83.80) | 50.56 (81.68) |
| Computer on a weekday (min/day) | 50.86 (53.83) | 51.67 (62.95) | 101.41 (86.77) | 98.58 (87.58) | 133.00 (107.25) | 122.26 (100.95) |
| Computer on a weekend day (min/day) | 52.17 (71.7) | 55.26 (75.74) | 112.94 (103.46) | 118.38 (110.07) | 142.82 (117.92) | 142.49 (114.63) |
| Total screen-time on a weekday (min/day) | 165.09 (115.07) | 165.26 (132.45) | 237.32 (151.62) | 246.36 (153.15) | 286.29 (184.67) | 265.25 (164.85) |
| Total screen-time on a weekend day (min/day) | 249.58 (171.27) | 253.51 (181.98) | 337.69 (206.27) | 365.78 (209.09) | 371.79 (214.91) | 383.05 (211.68) |
| Percentage of adolescents who exceed 180 min/day on screen-time behaviours | 68.9 % | 66.5 % | 86.3 % | 89.2 % | 89.6 % | 91.7 % |
TV Television
aStandard deviation adjusted for clustering