Table 2.

Correlation between the demographic characteristics and the sleep quality score in the two groups before and after the intervention

	Intervention group (n=50)				Control group (n=50)
	N1		N2		N1		N2
	P value	Correlation	P value	Correlation	P value	Correlation	P value	Correlation
Age	0.435	−0.113	0.205	−0.153	0.203	−0.181	0.161	−0.201
Gender	0.010	0.355	0.008	0.369	0.053	0.352	0.031	0.304
Marital status	0.201	−0.184	0.195	0.174	0.965	−0.006	0.990	−0.002
Occupation status	0.084	0.247	0.075	0.245	0.352	−0.134	0.525	−0.092
Education level	0.339	0.138	0.505	0.097	0.897	0.019	0.625	0.071
Hypertension	0.104	−0.233	0.071	−0.253	0.653	0.065	0.361	0.132
Diabetes	0.481	0.105	0.522	0.093	0.294	−0.151	0.492	−0.099

N1, Baseline; N2, Follow-up after intervention