Table 1. Comparison of demographic data and comorbidities of MRSA bacteremia patients with different SCCmec types.
| Characteristic, n (%) | SCCmec II n = 30 | SCCmec III n = 87 | SCCmec IV n = 22 | SCCmec V n = 20 | Total n = 159 | P |
| Sex, male | 20 (66.7) | 56 (64.4) | 12 (54.5) | 13 (65.0) | 101 (63.5) | 0.816 |
| Age, mean years ± SD | 69.9±14.9 | 69.0±15.9 | 66.6±15.6 | 57.0±19.4 | 67.3±16.5 | 0.02 |
| Community onset | 4 (13.3) | 11 (12.6) | 12 (54.5) | 9 (45.0) | 36 (22.6) | <0.001 |
| ICU onset | 15 (50) | 40 (46) | 2 (9.1) | 0 (0) | 57 (35.8) | <0.001 |
| Length of hospital say before index culture mean days ± SD, median (range) | 35.9±33.1 28 (0–157) | 50.7±71.3 26 (0–360) | 6.7±9.0 3 (0–33) | 11.1±12.2 10.5 (0–39) | 36.8±57.6 19.0 (0–360) | 0.001 |
| Comorbid condition | ||||||
| No underlying disease | 0 (0) | 0 (0) | 1 (4.8) | 2 (10) | 3 (1.9) | 0.017 |
| Diabetes mellitus | 7 (23.3) | 35 (40.2) | 2 (9.1) | 6 (30.0) | 50 (31.4) | 0.027 |
| Cancer | 10 (33.3) | 25 (28.7) | 5 (22.7) | 11 (55) | 51 (32.1) | 0.106 |
| Liver cirrhosis | 2 (6.7) | 12 (13.8) | 1 (4.5) | 4 (20) | 19 (11.9) | 0.375 |
| End-stage renal disease | 3 (10) | 16 (18.4) | 4 (18.2) | 1 (5) | 24 (15.1) | 0.409 |
| Cerebrovascular disease | 5 (16.7) | 24 (27.6) | 3 (13.6) | 2 (10) | 34 (21.4) | 0.242 |
| Charlson comorbidity score ≥3 | 17 (56.7) | 55 (63.2) | 10 (45.5) | 11 (55) | 93 (58.5) | 0.490 |
| Bed-ridden status | 7 (23.3) | 28 (32.2) | 3 (13.6) | 1 (0.5) | 39 (24.5) | 0.035 |
| Recent surgery | 10 (33.3) | 16 (18.4) | 0 (0) | 2 (10.0) | 28 (17.6) | 0.009 |