Table 3.
Differences in clinical characteristics between MRSA- and MSSA-associated disease groups according to univariate analysis
| Clinical characteristics | Deep-seated infection | Cutaneous infection | Abscess | Mastitis | SSTI-related bacteremia | Catheter-related exit-site infection | P-value | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| MRSA (n = 34) | MSSA (n = 18) | MRSA (n = 54) | MSSA (n = 51) | MRSA (n = 62) | MSSA (n = 49) | MRSA (n = 11) | MSSA (n = 5) | MRSA (n = 23) | MSSA (n = 12) | MRSA (n = 17) | MSSA (n = 8) | MRSA | MSSA | |
| Mean age (years) | 58.4 | 53.7 | 50.6 | 48.0 | 39.7 | 39.5 | 30.7 | 27.0 | 68.3 | 59.9 | 60.8 | 52.9 | <0.001 | <0.05 |
| Mean comorbidities | 2.2 | 2.3 | 1.9 | 1.5 | 0.9 | 0.8 | 0.1 | 0 | 3.4 | 3.0 | 3.5 | 3.1 | <0.001 | <0.001 |
| Mean operative procedure | 1.2 | 1.6 | 0 | 0.02 | 1.2 | 1.2 | 0.1 | 0.2 | 0.5 | 0.6 | 0.1 | 0.9 | <0.001 | <0.01 |
| Reconstructive surgery (%) | 4 (11.8) | 4 (22.2) | 0 (0) | 0 (0) | 1 (1.6) | 2 (4.1) | 0 (0) | 0 (0) | 0 (0) | 0 (0) | 0 (0) | 0 (0) | <0.01 | <0.05 |
| Amputation (%) | 7 (20.6)* | 0 (0) | 0 (0) | 0 (0) | 2 (3.2) | 0 (0) | 0 (0) | 0 (0) | 3 (13.4) | 0 (0) | 0 (0) | 0 (0) | <0.001 | NA |
| Mean hospitalization days | 16.9 | 13.2 | 9.1 | 6.9 | 9.6 | 7.7 | 0.5 | 4.0 | 19.2 | 18.3 | 13.3 | 8.4 | <0.01 | <0.05 |
| Mortality (%) | 0 (0) | 0 (0) | 3 (5.6) | 1 (2.0) | 0 (0) | 1 (2.0) | 0 (0) | 0 (0) | 1 (4.3) | 0 (0) | 0 (0) | 0 (0) | 0.248 | 0.974 |
*Indicates a significant difference between the MRSA and MSSA groups; P < 0.05