Table 1 Comparisons of variables in the TKA and UKA groups

Age (years)

72.2 ± 7.9

74 ± 6.4

0.060^a

Sex (% female)

80

90

0.550^a

Height (cm)

153 ± 4.2

150 ± 5.3

0.015^b

Weight (kg)

54.8 ± 8.9

50.2 ± 7.6

0.023^b

BMI (kg/m²)

25 ± 4.0

24.1 ± 3.6

0.201^b

Follow-up period (years)

9

10.6

0.055^a

Indication (primary osteoarthritis)

40

20

0.607 ^a

Revision (number)

2

2

0.469^c