TABLE 1.
Characteristics of subjects with or without closed skin infection
| Characteristic | Cases (n = 145) |
Controls (n = 145) |
95% confidence interval | ||
|---|---|---|---|---|---|
| No. | % | No. | % | ||
| Gender | |||||
| Male | 85 | 58.6 | 69 | 44.8 | 0.98, 2.49 |
| Female | 60 | 41.4 | 76 | 52.4 | 0.40, 1.02 |
| Race/ethnicity | |||||
| White | 72 | 49.7 | 77 | 50.0 | 0.55, 1.39 |
| Black | 63 | 43.4 | 56 | 36.4 | 0.08, 1.96 |
| Asian | 2 | 1.4 | 3 | 1.9 | 0.08, 4.52 |
| American Indian | 5 | 3.4 | 4 | 2.6 | 0.31, 5.36 |
| Hispanic | 27 | 18.6 | 30 | 19.5 | 0.49, 1.57 |
| Risk factor | |||||
| History of comorbidity | 53 | 36.6 | 40 | 26.0 | 0.92, 2.49 |
| Diabetes | 12 | 8.3 | 16 | 10.4 | 0.32, 1.61 |
| Chronic liver failure | 1 | 0.7 | 0 | 0.0 | 0.03, 78.1 |
| Chronic renal failure | 0 | 0.0 | 1 | 0.6 | 0.03, 78.1 |
| Cancer | 0 | 0.0 | 1 | 0.6 | 0.03, 78.1 |
| Eczema | 9 | 6.2 | 5 | 3.2 | 0.60, 6.23 |
| Any history of prior MRSA | 15 | 10.3 | 3 | 1.9 | 1.66, 23.9 |
| Recent skin lesion (past 6 mo) | 46 | 31.7 | 12 | 7.8 | 2.62, 10.6 |