Table 2 The differences in sleep status, bedtime activities, and anxiety/depression between the two groups
| Â | ADHD | U | |
|---|---|---|---|
Non-Symptomatic \( \overline{\mathrm{x}} \) (SD) | Symptomatic \( \overline{\mathrm{x}} \) (SD) | ||
Sleep length | |||
 Weekdays | 9.3 (0.6) | 9.3 (0.7) | 25,424.0 |
 Weekends | 10.1 (0.9) | 10.3 (2.8) | 26,846.0 |
Sleep problems (total score) | 46.3 (6.7) | 52.9 (6.9) | 9237.0*** |
 Bedtime resistance | 8.2 (2.2) | 9.6 (2.6) | 14,984.5*** |
 Sleep onset delay | 1.4 (0.6) | 1.6 (0.7) | 24,284.5* |
 Sleep duration | 4.4 (1.4) | 5.3 (1.5) | 17,729.0*** |
 Sleep anxiety | 5.4 (1.8) | 6.1 (1.9) | 20,815.0* |
 Night waking | 3.5 (0.8) | 4.1 (1.2) | 20,552.5*** |
 Parasomnias | 8.4 (1.4) | 9.3 (1.9) | 17,845.0*** |
 Sleep-disordered breath | 3.3 (0.6) | 3.8 (1.2) | 20,407.0*** |
 Daytime sleepiness | 11.8 (2.8) | 13.1 (2.7) | 17,546.0*** |
Bedtime activities | |||
 Screen activities | 5.3 (2.2) | 6.0 (2.9) | 22,595.0* |
 Diet | 4.7 (1.9) | 5.4 (2.9) | 22,705.0+ |
Anxiety/depression | 2.7 (2.9) | 5.9 (4.1) | 13,516.0*** |