Table 4.

Patient group Pittsburgh Sleep Quality Index score comparison 1 mo after intervention

Group	Sleep quality	Sleep latency	Sleep duration	Sleep efficiency	Sleep disturbance	Hypnotic medication use	Daytime dysfunction
Treatment group, n = 40	0.95 ± 0.32	2.20 ± 0.41	1.48 ± 0.64	2.25 ± 0.59	1.50 ± 0.56	2.70 ± 0.79	1.55 ± 0.60
Control group, n = 40	1.28 ± 0.51	2.73 ± 0.45	2.40 ± 0.63	1.68 ± 0.47	2.39 ± 0.49	2.60 ± 0.84	2.38 ± 0.54
t	3.446	5.469	6.502	-4.812	7.475	-0.548	6.481
P value	< 0.001	< 0.001	< 0.001	< 0.001	< 0.001	< 0.001	< 0.001