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Table 5 Univariate association of comorbidity with overall knee status at 2- and 5-years after Revision 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 status categorya Overall knee status n/N (%) Odds ratio (95% CI) p-value Overall knee status n/N (%) Odds ratio (95%) CI) p-value
Deyo-Charlson indexb Better Not applicable 1.4 (0.8, 2.4) 0.24 Not applicable 0.5 (0.2, 1.1) 0.08
Deyo-Charlson indexb Much better Not applicable 1.2 (0.7, 1.9) 0.50 Not applicable 0.6 (0.3, 1.2) 0.13
Anxiety: No Better 241/1,257 = 19.2% 1.0   151/727 = 20.8% 1.0  
    Yes Better 18/58 = 31.0% 1.6 (0.7, 3.6) 0.28 8/18 = 44.4% 2.0 (0.5, 7.6) 0.33
Anxiety: No Much better 827/1,257 = 65.8% 1.0   465/727 = 64.0% 1.0  
    Yes Much better 31/58 = 53.4% 0.8 (0.4, 1.7) 0.54 7/18 = 38.9% 0.6 (0.1, 2.2) 0.40
Depression: No Better 231/1,212 = 19.1%   1.0 147/707 = 20.8% 1.0  
    Yes Better 28/103 = 27.2% 1.1 (0.6, 2.1) 0.67 12/38 = 31.6% 1.0 (0.4, 2.3) 0.91
Depression: No Much better 802/1,212 = 66.2%    455/707 = 64.4% 1.0  
    Yes Much better 56/103 = 54.4% 0.7 (0.4, 1.1) 0.13 17/38 = 44.7% 0.4 (0.2, 1.0) 0.05
  1. aReference category for overall knee status was a patient response of same or worse index knee status; bper 5-point increase.