Table 2 Demographic and baseline characteristics of the study participants

Age, years

61.9 ± 8.8

61.0 ± 8.1

0.590^t

Gender, female(%)

31 (64.6%)

30 (63.8%)

0.431^a

Weight, kg

64.0 ± 13.5

67.0 ± 14.0

0.286^t

Height, cm

161.1 ± 8.6

162.1 ± 7.2

0.522^t

Body mass index, kg/m²

24.5 ± 3.8

25.4 ± 4.4

0.286 ^t

Employment status (light worker/heavy labor)

40 (83.3%)/8 (16.7%)

41 (87.2%)/6 (12.8%)

0.592^f

Knee injection side (left/right)

23 (47.9%)/25 (52.1%)

24 (51.1%)/23 (48.9%)

0.759^a

Disease duration, years

5.3 ± 4.1

5.5 ± 3.3

0.734^t