| Sleep disorders | PSQI score | Level of sleep quality | ||||
|---|---|---|---|---|---|---|
| Mean±SD | P-value | Good (PSQI: ≤5 points) | Poor (PSQI: 6−16 points) | Total | χ2/P | |
| No. (%) | No. (%) | No. (%) | ||||
| Restless legs syndrome | ||||||
| Yes | 7.57±3.91 | <0.001 | 32 (41.6) | 45 (58.4) | 77 (23.1) | 6.590/0.010 |
| No | 5.75±3.71 | 149 (58.2) | 107(41.8) | 256 (76.9) | ||
| Insomnia | ||||||
| Yes | 8.67±3.83 | <0.001 | 26 (26.5) | 72 (73.5) | 98 (29.4) | 43.331/<0.001 |
| No | 5.12±3.32 | 155 (66.0) | 80 (34.0) | 235 (70.6) | ||
| Parasomnias | ||||||
| Yes | 7.09±3.96 | 0.005 | 45 (46.9) | 51 (53.1) | 96 (28.8) | 3.032/0.090 |
| No | 5.79±3.72 | 101 (42.6) | 136 (57.4) | 237 (71.2) | ||
| Epworth Sleepiness Scale | ||||||
| Yes | 7.47±3.99 | <0.001 | 47 (38.2) | 76 (61.8) | 123 (36.9) | 20.486/<0.001 |
| No | 5.40±3.53 | 134 (63.8) | 76(36.2) | 210 (63.1) | ||
| Sleep respiratory disorder | ||||||
| Yes | 7.07±3.87 | 0.002 | 48 (41.4) | 68 (58.6) | 116 (34.8) | 12.079/0.001 |
| No | 5.68±3.73 | 133 (61.3) | 84 (38.7) | 217 (65.2) | ||
| Bruxism | ||||||
| Yes | 7.59±4.28 | 0.003 | 18 (33.3) | 36 (66.7) | 54 (16.2) | 11.479/0.001 |
| No | 5.89±3.68 | 163 (58.4) | 152 (45.6) | 279 (83.8) | ||