Effects of hormone replacement therapy on mood and sleep quality in menopausal women

Table 4 Comparison between sleep quality of the two groups

Group	n	Insufficient sleep		Poor quality of sleep		Insufficient sleep or wakefulness		Sleep duration		Difficulty in sleeping
		Pre-treatment	Post-treatment	Pre-treatment	Post-treatment	Pre-treatment	Post-treatment	Pre-treatment	Post-treatment	Pre-treatment	Post-treatment
Control	76	3.47 ± 0.81	2.21 ± 0.53a	2.91 ± 0.67	2.08 ± 0.35a	3.08 ± 0.72	2.39 ± 0.48a	2.84 ± 0.52	2.02 ± 0.31a	2.69 ± 0.40	1.77 ± 0.24a
Observation	76	3.52 ± 0.79	2.02 ± 0.38a	2.88 ± 0.70	1.96 ± 0.23a	3.11 ± 0.69	2.22 ± 0.31a	2.90 ± 0.57	1.91 ± 0.24a	2.73 ± 0.46	1.69 ± 0.15a
t value		0.385	2.540	0.270	2.498	0.262	2.594	0.678	2.446	0.572	2.464
P value		0.701	0.012	0.788	0.014	0.793	0.010	0.499	0.016	0.568	0.015

^aP < 0.05 compared to this group before treatment.

Data are mean ± SD.