Table 5 Various cutoff scores for the Chinese version of the PSQI
Cutoff score | Sensitivity | Specificity |
|---|---|---|
0.5 | 1.00 | 0.03 |
1.5 | 1.00 | 0.11 |
2.5 | 1.00 | 0.28 |
3.5 | 0.92 | 0.49 |
4.5 | 0.81 | 0.70 |
5.5 | 0.66 | 0.82 |
6.5 | 0.53 | 0.91 |
7.5 | 0.32 | 0.94 |
8.5 | 0.15 | 0.97 |
9.5 | 0.10 | 0.98 |
10.5 | 0.09 | 0.99 |
13.0 | 0.03 | 1.00 |
16.0 | 0.00 | 1.00 |