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Table 3 Factors associated jointly with change in HRQOL 10 years after TKA: multivariable analysis

From: Long-term health related quality of life in total knee arthroplasty

Factors

Change in WOMAC*

 

Pain

Stiffness

Function

 

β

p

value

β

p

value

β

p

value

Baseline WOMAC

0.732

< 0.0001

0.77

< 0.0001

0.57

< 0.0001

Age (continuous)

-0.38

0.031

-0.58

0.005

-0.82

< 0.0001

BMI categorized

      

 BMI < 30

-ref-

-ref-

-ref-

-ref-

-ref-

-ref-

 30 ≤ BMI < 35

-4.67

0.042

-4.46

0.104

-6.82

0.008

 BMI ≥ 35

-9.14

0.006

-9.65

0.014

-11.43

0.002

Comorbidity

      

 Depression

-9.66

0.012

-11.32

0.013

-11.77

0.008

 Rheumatologic disease

-8.19

0.025

    

Readmissions (6 months)

    

-7.29

0.037

R 2

0.314

0.394

0.228

  1. Abbreviations: BMI, Body Mass Index; WOMAC, Westen Ontario and McMaster Universities Osteoarthritis Index (0, best; 100, worst); ref: reference group
  2. *Changes are calculated so that a positive value indicates improvement and a negative value, worsening in all domains
  3. These general linear models have been adjusted for age and gender and they only appear in the table if some of them were statistically significant
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BMC Musculoskeletal Disorders

ISSN: 1471-2474

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