Table 2 MRSA nasal colonization rates among subgroups by age, sex, and clinical characteristics
Demographic and clinical characteristics | MRSA colonization rate | P value |
|---|---|---|
Age, years | ||
  < 1 | 1/33 (3.0) | |
 1–6 | 13/45 (28.9) | |
 7–12 | 4/16 (25.0) | |
 ≧13 | 2/20 (10.0) | 0.02 |
Sex | ||
 Male | 11/68 (16.2) | |
 Female | 9/46 (19.6) | 0.80 |
Diagnosis of SSTIs at admission | ||
 Yes | 1/2 (50.0) | |
 No | 19/112 (17.0) | 0.32 |
Nasogastric or nasoduodenal tube | ||
 Yes | 12/58 (20.7) | |
 No | 8/56 (14.3) | 0.06 |
Length of stay > 3 weeks | ||
 Yes | 2/33 (6.1) | |
 No | 18/81 (22.2) | 0.06 |
History of hospitalization in the past 1 year | ||
 Yes | 14/76 (18.4) | |
 No | 6/38 (15.8) | 0.80 |
History of MRSA colonization or infection in the past 1 year | ||
 Yes | 4/12 (33.3) | |
 No | 16/102 (15.7) | 0.22 |
Antibiotics used in the current hospitalization | ||
Number of agents | ||
 0 | 2/16 (12.5) | |
 1–3 | 14/68 (20.6) | |
 ≧4 | 4/30 (13.3) | 0.58 |
Class of agents | ||
 Penicillin | 11/47 (23.4) | |
 Cephalosporin | 8/63 (12.7) | |
 Carbapenem | 3/23 (13.0) | |
 Glycopeptide | 7/43 (16.3) | |
 Quinolone | 1/10 (10.0) | 0.59 |