Table 2 Comparison of the PSQI and its component scores with different levels of loneliness in Shandong, China (2016) (mean ± s)
Variables | Total score | Different levels of loneliness | F | P | ||
|---|---|---|---|---|---|---|
Low | Moderate | High | ||||
Total PSQI | 6.67 ± 3.42 | 5.36 ± 2.83 | 6.69 ± 3.23 | 7.55 ± 3.89 | 38.104 | 0.000 |
Components of PSQI | ||||||
 Subjective sleep quality | 1.14 ± 0.76 | 1.06 ± 0.64 | 1.17 ± 0.72 | 1.11 ± 0.91 | 2.680 | 0.069 |
 Sleep latency | 1.24 ± 0.90 | 0.90 ± 0.83 | 1.23 ± 0.91 | 1.48 ± 0.86 | 38.583 | 0.000 |
 Sleep duration | 0.61 ± 0.84 | 0.30 ± 0.62 | 0.58 ± 0.83 | 0.88 ± 0.91 | 45.337 | 0.000 |
 Habitual sleep efficiency | 0.84 ± 1.04 | 0.78 ± 1.01 | 0.85 ± 1.05 | 0.87 ± 1.05 | 0.840 | 0.432 |
 Sleep disturbances | 1.34 ± 0.67 | 1.21 ± 0.50 | 1.36 ± 0.61 | 1.38 ± 0.86 | 6.667 | 0.001 |
 Use of sleeping medication | 0.36 ± 0.76 | 0.17 ± 0.52 | 0.32 ± 0.69 | 0.59 ± 0.96 | 32.302 | 0.000 |
 Daytime dysfunction | 1.15 ± 0.78 | 0.94 ± 0.63 | 1.17 ± 0.71 | 1.23 ± 0.99 | 13.317 | 0.000 |