Table 4.

Comparison of the individual component score of the PSQI amongst patients with poor and good quality sleep.

PSQI components	Poor quality sleep	Good quality sleep	P value
	Mean (SD)	Mean (SD)
C-1 Quality of sleep	1.63 ± 0.71	0.21 ± 0.42	<0.001
C-2 Sleep latency	1.63 ± 0.76	0.27 ± 0.46	<0.001
C-3 Sleep duration	1.68 ± 0.76	0.39 ± 0.49	<0.001
C-4 Sleep efficiency	1.45 ± 0.77	0.23 ± 0.42	<0.001
C-5 Sleep disturbances	1.14 ± 0.74	0.14 ± 0.35	<0.001
C-6 Sleep medication	0.83 ± 0.66	0.02 ± 0.15	<0.001
C-7 Daytime sleepiness	0.77 ± 0.64	0.02 ± 0.12	<0.001