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Table 3 Univariate association of comorbidity with overall knee status a at 2- and 5-years after Primary TKA

From: Depression in primary TKA and higher medical comorbidities in revision TKA are associated with suboptimal subjective improvement in knee function

   2-year 5-year
Variable Overall knee statusa Overall knee status n/N (%) Odds ratio (95% CI) p-value Overall knee status n/N (%) Odds ratio (95% CI) p-value
Deyo-Charlsonb Better Not applicable 1.0 (0.7, 1.6) 0.88 Not applicable 1.1 (0.7, 1.6) 0.72
Deyo-Charlsonb Much better Not applicable 0.7 (0.5, 1.1) 0.10 Not applicable 0.8 (0.6, 1.1) 0.14
Anxiety: No Better 299/3,115 = 9.6% 1.0   481/5076 = 9.5% 1.0  
    Yes Better 24/163 = 14.7% 1.1 (0.5, 2.2) 0.87 40/351 = 11.4% 1.0 (0.5, 1.8) 0.94
Anxiety: No Much better 2657/3,115 = 85.3% 1.0   4407/5076 = 86.8% 1.0  
    Yes Much better 127/163 = 77.9% 0.6 (0.3, 1.2) 0.14 295/351 = 84.0% 0.8 (0.5, 1.3) 0.37
Depression: No Better 290/3,008 = 9.6% 1.0   450/4851 = 9.3% 1.0  
    Yes Better 33/270 = 12.2% 0.7 (0.4, 1.2) 0.15 71/576 = 12.3% 1.1 (0.7, 1.8) 0.62
Depression: No Much better 2572/3,008 = 85.5% 1.0   4222/4851 = 87.0% 1.0  
    Yes Much better 212/270 = 78.5% 0.5 (0.3, 0.8) <0.01 480/576 = 83.3% 0.8 (0.5, 1.3) 0.35
  1. aReference category for overall knee status was a patient response of same or worse index knee status; bper 5-point increase.