Table 3. Univariate and Multivariate Analysis of Potential Risk Factors for Multidrug-Resistant Escherichia coli a.
| Variables | MDR E. coli (n = 134) | P Value | Logistic Regression | ||
|---|---|---|---|---|---|
| Negative, No. (%) | Positive, No. (%) | OR (95% CI) | P value | ||
| Gender | 0.86 | ||||
| Male | 35 (52.2) | 36 (53.7) | |||
| Female | 32 (47.8) | 31 (46.3) | |||
| Age, y | 0.016 | ||||
| ≤ 10 | 20 (29.9) | 8 (11.9) | - | ||
| 11 - 20 | 19 (28.4) | 14 (20.9) | 0.68 | ||
| 21 - 60 | 19 (28.4) | 25 (37.3) | 0.44 | ||
| > 60 | 60 | 9 (13.4) | 20 (29.9) | 0.94 | |
| Admission wards | 0.019 | ||||
| ICU | 5 (7.5) | 15 (22.4) | - | ||
| Pediatric | 24 (35.8) | 10 (14.9) | 0.56 | ||
| Internal medicine | 6 (9) | 13 (19.4) | 0.42 | ||
| Surgery | 14 (20.9) | 9 (13.4) | 0.21 | ||
| Infectious | 10 (14.9) | 11 (16.4) | 0.5 | ||
| Gynecology | 8 (11.9) | 9 (13.4) | 0.68 | ||
| Admission duration, d | 0.007 | ||||
| ≤ 7 | 51 (76.1) | 36 (53.7) | - | ||
| > 7 | 16 (23.9) | 31 (46.3) | 0.07 | ||
| Diabetes | 0.15 | ||||
| No | 60 (89.6) | 54 (80.6) | - | ||
| Yes | 7 (10.4) | 13 (19.4) | 0.76 | ||
| Renal failure | 0.09 | ||||
| No | 66 (98.5) | 61 (91) | - | ||
| Yes | 1 (1.5) | 6 (9) | 0.7 | ||
| Admission history | < 0.001 | ||||
| No | 65 (97) | 44 (65.7) | - | ||
| Yes | 2 (3) | 23 (34.3) | 6.2 (1.06-36.4) | 0.043 | |
| Antibiotic use history | < 0.001 | ||||
| No | 57 (85.1) | 31 (46.3) | - | ||
| Yes | 10 (14.9) | 36 (53.7) | 3.3 (1.1-9.5) | 0.03 | |
| Corticosteroid use history | 0.7 | ||||
| No | 64 (95.5) | 63 (94) | |||
| Yes | 3 (4.5) | 4 (6) | |||
a Abbreviations: E. coli, Escherichia coli; MDR, multidrug resistant; CI, confidence interval; OR, odds ratio; ICU, intensive care unit.