Table 1 Demographics of included patients

Number

49

58

107

Age (year)

61.7 ± 7.9

65.2 ± 5.4

63.6 ± 6.9

0.065

Height (cm)

160.4 ± 9.2

159.2 ± 9.4

159.8 ± 9.3

0.991

Weight (kg)

69.4 ± 12.1

66.3 ± 13.3

67.7 ± 12.,8

0.657

BMI

26.9 ± 3.6

26.1 ± 4.3

26.4 ± 4.0

0.950

Initial Kellgren–Lawrence grade

I: 0

I: 3

I: 3

0.095

II: 11

II: 22

II: 33

III: 38

III: 33

III: 71