Table 2
Self-reported sleep quality by sexual orientation (n=123 459)
| Variates | Sexual minorities* (  , SE) | Heterosexual (  , SE) | t | P |
| Sleep duration (hour/day) | 6.883 (0.023) | 7.195 (0.013) | 18.38 | <0.001 |
| PSQI components score | ||||
| Subjective sleep quality | 1.300 (0.014) | 1.190 (0.005) | 10.62 | <0.001 |
| Sleep latency | 0.948 (0.015) | 0.780 (0.006) | 13.90 | <0.001 |
| Sleep duration | 1.059 (0.017) | 0.827 (0.010) | 18.24 | <0.001 |
| Habitual sleep efficiency | 0.389 (0.011) | 0.300 (0.003) | 23.14 | <0.001 |
| Sleep disturbance | 0.872 (0.010) | 0.749 (0.003) | 15.80 | <0.001 |
| Use of sleeping medication | 0.076 (0.007) | 0.013 (0.001) | 11.07 | <0.001 |
| Daytime dysfunction | 1.663 (0.017) | 1.451 (0.008) | 16.77 | <0.001 |
| Global PSQI score | 6.311 (0.056) | 5.310 (0.027) | 23.14 | <0.001 |
| Poor sleep quality (PSQI>7, n, %)† | 2289 (32.6) | 26 891 (21.9) | 281.70‡ | <0.001 |
*Sexual minorities included adolescents who reported same-sex or both-sex attraction.
†Poor sleep quality was defined as PSQI global score >7 and is presented as numbers (%).
‡χ2 test was used for poor sleep quality.
PSQI, Pittsburgh Sleep Quality Index.