Table 4.
The relationship between average screen time and ADHD symptoms of preschool children
| Group | Total OR (95%CI) |
Subgroup analysis | ||
|---|---|---|---|---|
| Boys OR (95%CI) |
Girls OR (95%CI) |
|||
| Model 1 | ||||
| Screen time > 1 h | ||||
| Weekdays | 1.826 (1.032, 3.232) | 1.723 (0.861, 3.448) | 2.270 (0.814, 6.332) | |
| Weekend | 1.086 (0.635, 1.858) | 0.951 (0.505, 1.789) | 1.504 (0.537, 4.210) | |
| Model 2 | ||||
| Screen time > 1 h | ||||
| Average | 1.615 (1.008, 2.586) | 1.420 (0.814, 2.479) | 2.249 (0.926, 5.464) | |
Note: Some numbers in bold meant that the statistical significance of OR existed. Average screen time > 1 h was obtained by integrating screen time on weekdays and weekends; The regression equation of model 1 included the screen time on weekdays and weekends; The regression equation of model 2 included the average screen time. Both models adjusted for child age, sex (unadjusted in subgroup analysis), maternal age at gestation, premature, parental education level, number of children in family, overweight and obesity