Table 2.
The results of sleep disturbance indicators based on the cutoff score of the hospital anxiety and depression scale
| Indicators | Anxiety | Depression | ||||
|---|---|---|---|---|---|---|
| HADS≤7 (n=328) | HADS>8 (n=48) | P value* | HADS≤7 (n=330) | HADS>8 (n=46) | P value** | |
| Sleep quality PSQI | 7.53 (4, 10) | 10.26 (7, 13) | 0.34 (<0.001) | 7.53 (4, 10) | 10.26 (7, 13) | 0.37 (<0.001) |
| Severity of insomnia ISI | 8.23 (2, 13) | 13.42 (9.5, 9) | 0.48 (<0.001) | 8.26 (2, 11) | 13.43 (9, 9) | 0.33 (<0.001) |
*
Mann-Whitney U test;
**
Spearman’s correlation; HADS: Hospital anxiety and depression scale; PSQI: Pittsburgh sleep quality index; ISI: Insomnia severity index. Higher PSQI and ISI scores indicate poorer sleep quality and more severe insomnia, respectively. Data are presented as median (interquartile range: 25th-75th percentile).