Table 1.
Baseline Demographics in Patients with and without MRSA IAI
| Non-MRSA IAI n=195 | MRSA IAI n=45 | p* | |
|---|---|---|---|
| Age (median) (y) | 55 (45–66) | 55 (45–59) | 0.37 |
| <65 | 138 | 38 | 0.06 |
| 65–74 | 38 | 3 | 0.05 |
| 75–84 | 18 | 4 | 0.94 |
| >85 | 1 | 0 | 1.00 |
| Race | |||
| White | 168 (86%) | 39 (87%) | 0.93 |
| Black | 21 (11%) | 6 (13%) | 0.62 |
| Hispanic | 3 (1.5%) | 0 (0%) | 1.00 |
| Other | 3 (1.5%) | 0 (0%) | 1.00 |
| Female | 95 (49%) | 24 (53%) | 0.58 |
| Origin of infection | |||
| Community acquired | 110 (56%) | 16 (36%) | 0.01 |
| Healthcare-associated | 36 (19%) | 20 (44%) | 0.0002 |
| Hospital-acquired | 49 (25%) | 9 (20%) | 0.47 |
| Positive MRSA screen | 34 (17%) | 39 (87%) | <0.0001 |
| Time from screen to infection (d) | 2 (2–14) | 0 (0–6) | 0.05 |
*
Significance p<0.05
MRSA=methicillin-resistant Staphylococcus aureus; IAI=intra-abdominal infection.