Sleep Quality among Female Hospital Staff Nurses

Table 2

Subjective and objective sleep measures of the subjects.

Sleep indices	Mean	SD
PSQI (score)	7.34	2.94
Subject sleep quality (score)	1.25	0.77
Sleep latency (minute)	18.33	13.09
Sleep duration (hours)	6.11	1.22
Sleep efficiency (%)	83.20	13.81
Sleep disturbance (score)	6.54	3.41
Use of sleep medications (score)	0.23	0.63
Daytime dysfunction (score)	1.91	1.43
CPC
Sleep latency (minute)	26.79	43.80
Stable sleep ratio (%)	46.62	17.26
Unstable sleep ratio (%)	29.78	13.34
Awake/dream sleep (%)	22.26	8.01
AHI	4.32	7.68

Note.  PSQI: Pittsburgh sleep quality index; CPC: cardiopulmonary coupling analysis, AHI: apnea/hypopnea index.