Table 4 Correlation matrix of PSQI and MMSE (n鈥�=鈥�1,001)
| 听 | Orientation | Registration | Attention and Calculation | Recall | Language and Praxis | MMSE score |
|---|---|---|---|---|---|---|
Total PSQI score | -0.17** | -0.06 | -0.22** | -0.16** | -0.25** | -0.27** |
Subjective sleep quality | -0.19** | -0.08* | -0.18** | -0.16** | -0.17** | -0.23** |
Sleep latency | -0.12** | -0.05 | -0.17** | -0.08** | -0.20** | -0.20** |
Sleep duration | -0.09** | -0.00 | -0.13** | -0.08** | -0.18** | -0.16** |
Sleep efficiency | -0.14** | -0.07* | -0.20** | -0.18** | -0.24** | -0.26** |
Sleep disturbance | -0.18* | -0.05 | -0.20** | -0.12** | -0.22** | -0.24** |
Sleep medication | -0.02 | -0.00 | -0.05 | -0.09** | -0.01 | -0.05 |
Daily dysfunction | -0.19** | -0.01 | -0.17** | -0.12** | -0.28** | -0.25** |