Sleep quality in middle-aged and elderly hemodialysis patients: Impact of a structured nursing intervention program

Table 3 Changes in Pittsburgh Sleep Quality Index component scores before and after the nursing intervention program (n = 65)

PSQI component	Baseline	Post-intervention	P value
Subjective sleep quality	1.9 ± 0.7	1.1 ± 0.7	< 0.001
Sleep latency	2.1 ± 1.0	1.2 ± 0.9	< 0.001
Sleep duration	1.4 ± 1.0	0.8 ± 0.9	< 0.001
Habitual sleep efficiency	1.5 ± 1.2	0.6 ± 0.9	< 0.001
Sleep disturbances	1.8 ± 0.6	1.1 ± 0.6	< 0.001
Use of sleeping medication	0.7 ± 1.1	0.3 ± 0.7	0.002
Daytime dysfunction	1.4 ± 0.8	0.7 ± 0.7	< 0.001

Data are presented as the mean ± SD. PSQI: Pittsburgh Sleep Quality Index.