Table 3. Association between MRSA/MSSA with clinico-demographic characteristics among patients with SSI.
| Variable | Patients with S. aureus SSI | OR [95% CI] | p-value | |
| MSSA (n = 40 | MRSA (n = 24) | |||
| Age | ||||
| ≤30 years | 27 (61.3) | 17 (38.6) | 1 | |
| >30 years | 13 (65.0) | 7 (35.0) | 0.9 [0.2–2.9] | 0.7806 |
| Sex | ||||
| Male | 8 (72.70 | 3 (27.3) | 1 | |
| Female | 32 (60.4) | 21 (39.6) | 1.75 [0.4–11.3] | 0.4413 |
| Wards | ||||
| Obstetrics & Gynecology | 24 (60.0) | 16 (40.0) | 1 | |
| General surgery | 13 (65.0) | 7 (35.0) | 0.8 [0.2–2.8] | 0.7073 |
| Orthopedic | 3 (75.0) | 1 (25.0) | 0.5 [0.01–7.0] | 0.5569 |
| Operation | ||||
| Elective | 14 (70.0) | 6 (30.0) | 1 | |
| Emergency | 26 (40.1) | 18 (59.1) | 1.6 [0.5–6.1] | 0.4034 |
| Extent of infection | ||||
| Deep | 24 (77.4) | 7 (22.6) | 1 | |
| Organ | 2 (25.0) | 6 (75.0) | 10.3 [1.3–117.2] | 0.0050 |
| Superficial | 14 (56.0) | 11 (44.0) | 2.7 [0.7–10.1] | 0.0880 |
| Cancer | ||||
| No | 40 (65.6) | 21 (34.4) | ||
| Yes | 0 (0.0) | 3 (100.0) | – | 0.0220 |
| HIV serostatus | ||||
| Negative | 13 (72.2) | 5 (27.8) | 1 | |
| Positive | 10 (66.7) | 5 (33.3) | 1.3 [0.2–7.4] | 0.7295 |
| Colonization with S. aureus | ||||
| No | 37 (63.8) | 21 (36.2) | 1 | |
| Yes | 3 (50.0) | 3 (50.0) | 1.8 [0.2–14.2] | 0.5065 |
| Length of hospital stay (admission to discharge) | ||||
| ≤7 days | 19 (76.0) | 6 (24.0) | 1 | |
| >7 days | 21 (53.9) | 18 (46.1) | 2.7 [0.8–10.0] | 0.0741 |
| Presence of pvl | ||||
| No | 23 (57.5%) | 17 (42.5%) | 1 | |
| Yes | 17 (70.8%) | 7 (29.2%) | 0.56 [0.16–1.8] | 0.286 |
| Inducible clindamycin resistant (D test +) | ||||
| No | 23 (79.3%) | 6 (20.7%) | 1 | |
| D-test negative | 14 (58.3%) | 10 (41.7%) | 2.74 [0.70–11.18] | 0.098 |
| D-test positive | 3 (27.3%) | 8 (72.7%) | 10.22 [1.66–73.52] | 0.002 |