Table 5.
Multivariate logistic regression for infection rates.
| Total Hip Arthroplasty Cohort (Total n = 1770) | ||||
|---|---|---|---|---|
| Outcome | Unadjusted Odds Ratio (95% CI)a | p-value | Adjusted Odds Ratio (95% CI)b | p-value |
| Infection |
0.367 (0.77, 1.745) |
0.208 |
0.192 (0.034, 1.077) |
0.061 |
| Total Knee Arthroplasty Cohort (Total n = 1570) | ||||
| Outcome |
Unadjusted Odds Ratio (95% CI)a |
p-value |
Adjusted Odds Ratio (95% CI)b |
p-value |
| Infection |
8.24 × 106 (0, --) |
0.994 |
8.41 × 106 (0, --) |
0.995 |
| Total Joint Arthroplasty Cohort (Total n = 3340) | ||||
| Outcome |
Unadjusted Odds Ratio (95% CI)a |
p-value |
Adjusted Odds Ratio (95% CI)b |
p-value |
| Infection | 0.855 (0.195, 3.754) | 0.835 | 0.761 (0.177, 3.550) | 0.761 |
a
Unadjusted model only studies the association between infection rate and injection use.
b
Adjusted model studies the association between infection rate, injection use, and demographic variables (age, BMI, ASA score, CCI, gender, race, and smoking status).