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.

Table 2 Comparison of knee function scores between the two groups

Variables	Experimental group	Control group	t	P value
1st month	47.52 ± 5.69	45.81 ± 7.09	1.433	0.0774
2nd month	59.38 ± 7.43a	53.19 ± 6.24a	4.859	< 0.001c
3rd month	71.92 ± 8.14b	64.34 ± 8.02b	5.052	< 0.001c

^aP < 0.05.

^bP < 0.01.

^cP < 0.001.