Table 2: Risk factors associated with SSI in primary hip arthroplasty - Belo Horizonte, 2007-2011.
| Features | Surgical Site Infection | Total | p | Odds Ratio | |||||
| Yes | No | ||||||||
| n = 5 | % | n = 20 | % | n = 25 | % | Estimative | IC 95% | ||
| Sex | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
| Male | 4 | 28.6 | 10 | 71.4 | 14 | 56.0 | 0.341 | (ref) | 
 | 
| Female | 1 | 9.1 | 10 | 90.9 | 11 | 44.0 | 
 | 4.0 | 0.4-42.4 | 
| Age (Years) | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
| < 50 | 2 | 20.0 | 8 | 80.0 | 10 | 40.0 | 0.400 | (ref) | 
 | 
| 50 a 64 | 2 | 28.6 | 5 | 71.4 | 7 | 28.0 | 
 | 0.6 | 0.1-6.0 | 
| 65 a 79 | 0 | 0.0 | 6 | 100.0 | 6 | 24.0 | 
 | - | - | 
| ≥ 80 | 1 | 50.0 | 1 | 50.0 | 2 | 80.0 | 
 | 0.3 | 0.01-6.0 | 
| Obesity | 1 | 16.7 | 5 | 83.3 | 6 | 30.0 | 1 | 1.2 | 0.1-16.4 | 
| Diabetes mellitus | 1 | 50.0 | 1 | 50.0 | 2 | 8.0 | 0.367 | 4.7 | 0.2-93.0 | 
| Smoking | 0 | 0.0 | 3 | 100.0 | 3 | 13.0 | 1 | - | - | 
| Preoperative hospitalization < 24 h | 3 | 16.7 | 15 | 83.3 | 18 | 72.0 | 0.597 | 0.5 | 0.1-3.9 | 
| Surgery time > 150 minutes | 1 | 14.3 | 6 | 85.7 | 7 | 28.0 | 1 | 0.6 | 0.1-6.4 | 
| Preoperative bathing | 4 | 18.2 | 18 | 81.8 | 22 | 91.7 | 0.380 | 0.2 | 0.01-4.4 | 
| Prophylactic TBA 30 to 60 minutes before the surgery incision | 2 | 10.5 | 17 | 89.5 | 19 | 79.2 | 0.179 | 0.2 | 0.02-1.8 | 
| Prophylactic TBA with 24 suspended | 4 | 17.4 | 19 | 82.6 | 23 | 95.8 | 1 | - | - |