Table 2.
Features of the etiology of infections caused by Staphylococcus aureus
| Characteristics | Total (N = 613) | MSSA (N = 508) |
MRSA (N = 105) | OR (95%CI) | P-value | |
|---|---|---|---|---|---|---|
| Age (years) (median, quartiles) |
72 (66;79) | 75 (67;81) | 72 (65;78) | N/A | 0.0048 | |
| Gender: | Female | 322 (100.0) | 214 (82.3) | 57 (17.7) | 1.4 (0.93–2.16) | 0.5909 |
| Male | 291 (100.0) | 255 (83.5) | 48 (16.5) | |||
| Step aging n (%) | 0,0849 | |||||
| Young Old | 311 (100.0) | 267 (85.9) | 44 (14.1) | 1.5 (1.00–2.35) | ||
| Old Old | 272 (100.0) | 219 (80.5) | 53 (19.5) | 0.7 (0.49–1.13) | ||
| Longevity | 30 (100.0) | 22 (73.3) | 8 (26.7) | 0.6 (0.24–1.27) | ||
| Disease n (%) | <0.0001 | |||||
| PNU | 47 (100.0) | 28 (59.6) | 19 (40.4) | 0.3 (0.14–0.49) | ||
| BSI | 37 (100.0) | 27 (73.0) | 10 (27.0) | 0.5 (0.25–1.14) | ||
| SSTI | 416 (100.0) | 350 (84.1) | 66 (15.9) | 1.3 (0.85–2.03) | ||
| EI | 62 (100.0) | 56 (90.3) | 6 (9.7) | 1.7 (0.72–4.06) | ||
| Others | 51 (100.0) | 47 (92.2) | 4 (7.8) | 2.6 (0.91–7.31) | ||
| Place of the treatment infections n (%) | 0.0033 | |||||
| INPATIENTS | 430 (100.0) | 352 (81.4) | 78 (18.1) | 0.8 (0.49–1.26) | ||
| LTCF | 16 (100.0) | 9 (56.3) | 7 (43.8) | 0.3 (0.09–0.69) | ||
| OUTPATIENTS | 167 (100.0) | 147 (88.0) | 20 (12.0) | 1.7 (1.03–2.92) | ||
| Infections treated in hospitals (INPATIENTS N = 430, n (%)) | ||||||
| ICU | 19 (100.0) | 12 (63.2) | 7 (36.8) | 2.8 (1.06–7.34) | 0.014 | |
| non-ICU | 411 (100.0) | 340 (82.7) | 71 (17.3) | |||
Abbreviations: PNU pneumonia, BSI bloodstream infection, SSTI skin and soft tissue infection, EI eye infection, INPATIENTS Hospital infection, LCTF long term care facility, OUTPATIENTS Community Infection, ICU Intensive Care Unit, Non-ICU Non Intensive Care Unit, OR odds ratio, 95%CL 95% confidence interval, P-value probability value, MSSA Methicilin Sensitive Staphylococcus aureus, MRSA Methiciln Resistant Staphylococcus aureus, N/A not applicable/ not available?