Research Article
Spread of TEM, VIM, SHV, and CTX-M β-Lactamases in Imipenem-Resistant Gram-Negative Bacilli Isolated from Egyptian Hospitals
Table 4
Risk factors associated with isolation of Gram-negative bacilli isolates.
| Risk factor | Gram-negative bacilli isolates | Total number of samples | Relative risk (95% CI) | value significance |
| Age | | | | | <40 | 26 | 45 | 1.07 (0.78–1.47) | 0.66 | >40 | 39 | 63 | Sex | | | | | Male | 29 | 49 | 1.09 (0.8–1.47) | 0.59 | Female | 36 | 59 | Trauma | | | | | Yes | 48 | 59 | 2.34 (1.57–3.51) | <0.001 | No | 17 | 49 | Hospitalization length other than ICU | | | | | <7 days | 15 | 51 | 2.98 (1.33–4.61) | <0.001 | >7 days | 50 | 57 | ICU admission | | | | | Yes | 28 | 46 | 1.02 (0.45–2.47) | <0.001 | No | 37 | 62 | Urinary catheter | | | | | Yes | 18 | 32 | 0.91 (0.64–1.29) | 0.58 | No | 47 | 76 | Ventilator support | | | | | Yes | 10 | 18 | 0.83 (0.51–1.35) | 0.44 | No | 20 | 30 | Central venous catheter | | | | | Yes | 4 | 9 | 0.67 (0.31–1.43) | 0.26 | No | 26 | 39 |
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= 95% confidence interval.
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