Table 4.
Factor | OR | 95% CI | p value |
---|---|---|---|
Age | 1.08 | 1.03–1.04 | < 0.001 |
Elixhauser Comorbidity Index | 1.36 | 1.32–1.40 | < 0.001 |
Female | 0.67 | 0.61–0.74 | < 0.001 |
Geographic region | |||
Northeast | REF | – | – |
Midwest | 0.84 | 0.73–0.98 | 0.03 |
South | – | – | NS |
West | 0.71 | 0.61–0.82 | NS |
Ethnicity | |||
White | REF | – | – |
Black | 1.50 | 1.26–1.79 | < 0.001 |
Hispanic | – | – | NS |
Asian | – | – | NS |
Native American | – | – | NS |
Type of arthroplasty | |||
THA | 1.84 | 1.66–2.03 | < 0.001 |
TKA | – | – | NS |
Revision THA | 2.94 | 2.58–3.37 | < 0.001 |
Revision TKA | – | – | NS |
Insurance | |||
Medicare | REF | – | – |
Medicaid | 1.92 | 1.40–2.63 | < 0.001 |
Private | – | – | NS |
Self-pay | 2.07 | 1.14–3.75 | 0.016 |
No charge | – | – | NS |
Other | 0.70 | 0.51–0.96 | 0.03 |
Year | 0.88 | 0.86–0.89 | < 0.001 |
UTI | 1.47 | 1.27–1.71 | < 0.001 |
Pneumonia | 5.23 | 4.35–6.30 | < 0.001 |
Sepsis | 8.56 | 5.97–12.28 | < 0.001 |
Severe sepsis | 66.28 | 57.18–76.81 | < 0.001 |
* For factors with more than two categories, the reference category is labeled REF; OR = odds ratio; CI = confidence interval; NS = not significant; UTI = urinary tract infection.