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Table 2 Beta-coefficients (ß) and p-values for association between post-operative comorbidity measures and the pain and function measures post-TKA

From: Increasing comorbidity is associated with worsening physical function and pain after primary total knee arthroplasty

 

Coefficient (95 % CI); p-value

 

Charlson Index

Medical subscale Index*

Local Musculoskeletal subscale Index*

TKA-Related subscale Index*

SF36 Physical Functioning (PF)

-0.07 (-0.11, -0.03); p  = 0.001

-0.03 (-0.05, -0.01); p  = 0.002

-0.05 (-0.08, -0.02); p  = 0.001

0.04 (-0.22, 0.13); p = 0.64

WOMAC Physical Function (PF)

0.08 (0.03, 0.12); p  < 0.001

0.02 (-0.004, 0.04); p = 0.11

0.06 (0.01, 0.10); p  = 0.01

0.04 (-0.23, 0.31); p = 0.76

SF-36 Bodily Pain (BP)

-0.06 (-0.09, -0.02); p  = 0.002

-0.04 (-0.06, -0.02); p  < 0.001

-0.04 (-0.08, -0.004); p  = 0.03 (-

Not calculable

WOMAC Pain

-0.013 (-0.07, 0.04); p = 0.64

-0.01 (-0.04, 0.02); p = 0.44

0.02 (-0.04, 0.07); p = 0.49

-0.21* (-0.49, 0.08); p = 0.15

  1. --, not assessed
  2. SF-36, Short Form 36; WOMAC, Western Ontario McMaster Universities Osteoarthritis index
  3. Significant p-values are in bold
  4. *estimate not reliable, since model fit wasn’t good and the model did not converge
  5. *index, novel medical/surgical comorbidity severity index
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BMC Musculoskeletal Disorders

ISSN: 1471-2474

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