Table 4.
Multivariable logistic regression evaluating associations between race and demographic variables with LOS 3 or more days, nonhome discharge, 90-day readmission, and 90-day ED admission after TKA
| LOS ≥ 3 days | Nonhome discharge | 90-day readmission | 90-day ED admission | |||||
| Variable | Estimate (95% CI) | p value | Estimate (95% CI) | p value | Estimate (95% CI) | p value | Estimate (95% CI) | p value |
| Race (White vs Black) | 0.41 (0.32-0.54) | < 0.001 | 0.44 (0.33-0.60) | < 0.001 | 0.54 (0.39-0.77) | < 0.001 | 0.60 (0.45-0.79) | < 0.001 |
| Age (IQR increase) | 2.07 (1.77-2.42) | < 0.001 | 3.56 (2.95-4.33) | < 0.001 | 1.58 (1.30-1.92) | < 0.001 | 0.91 (0.78-1.06) | 0.22 |
| Gender (women vs men) | 1.69 (1.35-2.12) | < 0.001 | 1.81 (1.39-2.37) | < 0.001 | 0.92 (0.70-1.22) | 0.57 | 1.12 (0.89-1.41) | 0.33 |
| BMI in kg/m2 (IQR increase) | 1.34 (1.18-1.53) | < 0.001 | 1.52 (1.30-1.77) | < 0.001 | 1.14 (0.95-1.35) | 0.16 | 1.1 (0.96-1.27) | 0.17 |
| Smoking (quit vs never) | 1.13 (0.90-1.40) | 0.29 | 0.88 (0.68-1.13) | 0.31 | 1.12 (0.84-1.48) | 0.44 | 1.26 (1.00-1.59) | 0.05 |
| Smoking (current vs never) | 1.27 (0.82-1.91) | 0.27 | 1.47 (0.89-2.34) | 0.12 | 1.28 (0.74-2.12) | 0.35 | 1.65 (1.12-2.39) | 0.009 |
| CCI | 1.18 (1.12-1.24) | < 0.001 | 1.17 (1.11-1.24) | < 0.001 | 1.15 (1.07-1.22) | < 0.001 | 1.12 (1.05-1.18) | < 0.001 |
| Intercept | 0 (0.00-0.00) | < 0.001 | 0 (0.00-0.00) | < 0.001 | 0 (0.00-0.02) | < 0.001 | 0.15 (0.05-0.45) | 0.001 |
Race was provider-recorded and captured by an institutional data collection system. CCI = Charlson comorbidity index scores represent quan-10 age-unadjusted comorbidity burden with increasing values implying higher comorbidity burden.