Table 2

Self reported measures: WOMAC OA Index, Arthritis Self-Efficacy Scale, and SF-12 Health Survey

OutcomeBaselineFollow upMedian change
Data are presented as medians and interquartile ranges. Note: SF-12 scales represent minimum and maximum values of the total sample
*Significantly different from baseline (p = 0.045); †significantly different from baseline (p = 0.003); ‡significantly different from baseline (p = 0.002); §significantly different from baseline (p = 0.027); ¶significantly different from control group (p = 0.006); **significantly different from control group (p = 0.006).
WOMAC
Function score (0–68)
    Hydro34.0 (16.0)33.0 (17.0)−1.0 (10.0)
    Gym28.0 (13.0)27.0 (12.0)−1.0 (11.0)
    Control37.0 (17.0)37.0 (13.0)0.0 (8.0)
Stiffness score (0–8)
    Hydro5.0 (2.0)4.0 (3.0)0.0 (1.0)
    Gym4.0 (2.0)4.0 (2.0)0.0 (2.0)
    Control4.0 (3.0)4.0 (3.0)0.0 (2.0)
Pain score (0–20)
    Hydro10.0 (3.0)10.0 (4.0)*−1.0 (3.0)
    Gym8.0 (4.0)8.0 (5.0)0.0 (3.0)
    Control10.0 (4.0)10.0 (4.0)1.0 (3.0)
Self efficacy
Symptoms score (10–100)
    Hydro65.0 (23.3)63.3 (26.7)−1.7 (25.0)
    Gym70.0 (26.7)70.0 (30.0)5.0 (15.0)
    Control63.3 (31.7)58.3 (28.3)−1.7 (11.7)
Satisfaction score (10−100)
    Hydro50.0 (20.0)50.0 (25.0)0.0 (20.0)
    Gym50.0 (25.0)60.0 (30.0)† ¶5.0 (15.0)
    Control55.0 (30.0)50.0 (40.0)0.0 (15.0)
SF-12
Physical score (16−57)
    Hydro31.4 (7.9)37.1 (12.7)‡**2.9 (7.7)
    Gym30.7 (11.2)31.4 (12.7)2.8 (10.6)
    Control30.9 (11.2)28.8 (11.0)−0.1 (8.1)
Mental score (25–70)
    Hydro53.4 (15.7)53.3 (15.5)0.0 (10.0)
    Gym51.8 (21.2)57.9 (19.5)§2.2 (7.3)
    Control50.5 (16.9)50.5 (14.0)0.0 (8.8)