Descriptive statistics of sociodemographic factors and measures of screen time (n=699)
| % (N) | |
| Sociodemographic factors | |
| Child’s gender | |
| Girls | 47.6 (333) |
| Boys | 52.4 (366) |
| Child’s age (years), mean (SD) | 5.68 (0.54) |
| Maternal education | |
| University-level degree | 63.4 (409) |
| Less than university-level degree | 36.6 (236) |
| Number of siblings | |
| 0 | 51.0 (327) |
| 1 | 32.2 (207) |
| 2 | 12.9 (83) |
| 3 | 2.5 (16) |
| ≥4 | 1.2 (8) |
| Full-time daycare | |
| No | 32.3 (214) |
| Yes | 67.7 (448) |
| Screen time | |
| Total screen time at 18 months (min), mean (SD), range (max-min) | 32.4 (31.0), 252.9 |
| >60 min, % | 22.7 (136) |
| >120 min, % | 2.8 (17) |
| Programme viewing at 5 years (min), mean (SD), range (max-min) | 80.4 (36.3), 225.0 |
| >60 min, % | 66.8 (442) |
| >120 min, % | 16.9 (112) |
| Electronic game-playing at 5 years (min), mean (SD), range (max-min) | 33.4 (25.9), 182.1 |
| >60 min, % | 10.6 (69) |
| >120 min, % | 2.3 (15) |
| Total screen time at 5 years (min), mean (SD), range (max-min) | 114.1 (50.6), 321.4 |
| >60 min, % | 94.6 (615) |
| >120 min, % | 40.2 (261) |
| >180 min, % | 11.5 (75) |