Table 1.

Comparisons of variables in the TKA and UKA groups

	TKA group (n = 50)	UKA group (n = 28)	p value
Age (years)	72.2 ± 7.9	74 ± 6.4	0.060a
Sex (% female)	80	90	0.550a
Height (cm)	153 ± 4.2	150 ± 5.3	0.015b
Weight (kg)	54.8 ± 8.9	50.2 ± 7.6	0.023b
BMI (kg/m2)	25 ± 4.0	24.1 ± 3.6	0.201b
Follow-up period (years)	9	10.6	0.055a
Indication (primary osteoarthritis)	40	20	0.607 a
Revision (number)	2	2	0.469c

^aχ² test

^bStudent’s t test

^cMantel-Haenszel procedure