Table 2.

Prevalence of sleep quality and its components among participants.

Components	Mean/SD
Subjective sleep quality	0.96 ± 0.74
Sleep latency	1.37 ± 0.97
Sleep duration	0.97 ± 0.92
Habitual sleep efficiency	0.10 ± 0.39
Sleep disturbances	1.25 ± 0.70
Use of sleep medication	0.24 ± 0.67
Daytime dysfunction	1.02 ± 0.93
Global score	5.91 ± 3.36
Sleep quality groups	N (%)
Good	142 (41.5)
Poor	200 (58.5)