Rehabilitation care for pain in elderly knee replacement patients

Table 1 Comparison of general demographic characteristics between the two groups

Variables	Experimental group (n = 58)	Control group (n = 58)	t/χ2	P value
Age (yr)	65.8 ± 4.2	64.9 ± 4.4	1.127	0.131
Gender			0.322	0.57
Male	22 (37.93)	25 (43.10)
Female	36 (62.07)	33 (56.90)
BMI (kg/m2)	25.31 ± 1.77	25.74 ± 1.84	1.283	0.101
Education level			0.787	0.853
Primary school or below	6 (10.34)	4 (6.90)
Middle school	9 (15.52)	11 (18.97)
High school	24 (41.38)	22 (37.93)
Junior college and above	19 (32.76)	21 (36.21)
Place of residence			0.568	0.753
Urban	11 (18.97)	13 (22.41)
Town	29 (50.00)	25 (43.10)
Rural	18 (31.03)	20 (34.48)

BMI: Body mass index.