Table 2.
Comparison of the PSQI of patients with Wilson’s disease (WD) and control subjects
| Parameters | WD | Controls | P |
|---|---|---|---|
| Sleep quality | |||
| Good (0, 1) | 18 | 14 | 0.14 |
| Bad (2, 3) | 6 | 11 | |
| Sleep latency | |||
| <30 min (0, 1) | 17 | 17 | 0.54 |
| >30 min (2, 3) | 7 | 8 | |
| Sleep duration | |||
| >6 hours (0, 1) | 18 | 25 | 0.01 |
| <6 hours (2, 3) | 6 | 0 | |
| Sleep efficiency | |||
| >75 (0, 1) | 17 | 21 | 0.22 |
| <75 (2, 3) | 7 | 4 | |
| Sleep disturbance | |||
| <10 per night (0, 1) | 22 | 22 | 0.52 |
| >10 per night (2, 3) | 2 | 3 | |
| Sleep medications | |||
| Never in 1 month (0) | 24 | 25 | - |
| Daytime dysfunction | |||
| Never in 1 month (0) | 24 | 25 | - |
| PSQI score of >5 | 15 | 6 | 0.004 |
| Mean PSQI score | 5.4 ± 3.5 | 3.5 ± 2.6 | 0.03 |
WD, Wilson’s disease, PSQI, Pittsburgh sleep quality index