Table 4

Correlation data for the hip OA (n = 117) and knee OA (n = 284) groups at baseline
Correlation with LEFS
Hip group Knee group
r (95%-CI) r (95%-CI)
HOOS/KOOS
 Pain 0.71 (0.60 – 0.79) 0.65 (0.58 - 0.72)
 Symptoms 0.56 (0.41 – 0.67) 0.42 (0.32 – 0.52)
 Function, daily living 0.78 (0.69 – 0.84) 0.78 (0.73 – 0.83)
 Function, sports and recreation 0.74 (0.64 – 0.82) 0.63 (0.55 – 0.70)
 Quality of life 0.72 (0.62 – 0.80) 0.60 (0.52 – 0.67)
SF36
 Pain 0.51 (0.35 – 0.64) 0.66 (0.59 – 0.72)
 Functioning 0.82 (0.75 – 0.88) 0.81 (0.77 – 0.85)
HADS
 Anxiety −0.25 (-0.42 – -0.07) −0.10 (-0.22 – 0.02)
 Depression −0.30 (-0.46 – -0.12) −0.28 (-0.38 – -0.16)
 CIS −0.55 (-0.67 – -0.41) −0.47 (-0.56 – -0.37)

Due to the inverted scales, the correct interpretation of negative associations is that more anxiety/depression/fatigue is associated with worse function.

Abbreviations: CIS = Checklist Individuals Strength, HADS = Hospital Anxiety and Depression Questionnaire, HOOS = Hip Osteoarthritis and Outcome Score, IQR = Inter-quartile range, KOOS = Knee Osteoarthritis and Outcome Score, LEFS = Lower Extremity Functional Scale, OA = osteoarthritis.

Hoogeboom et al.

Hoogeboom et al. BMC Musculoskeletal Disorders 2012 13:117   doi:10.1186/1471-2474-13-117

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