Table 4 Multivariate logistic regression analysis for factors associated with bacterial isolation from post operative patients at Ayder Referral Hospital, Mekelle, Ethiopia (January to June 2012)
Variable | Bacteria isolated from SSI (n = 96) | AOR [95% CI] | P value | |
|---|---|---|---|---|
Age (years) | 15-30 | 19 (19.8) | 2.07 (0.73-2.64) | |
31 – 40 | 25 (26.04) | 3.83 (0 .42- 1.61) | 0.064 | |
41-50 | 22 (22.9) | 1.03 ( 0.24- 2.87) | ||
≥ 50 | 30 (31.3) | 2.84 ( 0.86- 2.67) | ||
Sex | Male | 54 (56.3) | 1.8 (0.96-4.19) | |
Female | 42 (43.7) | 1.42 (0 .21- 0.82) | 0.055 | |
Wound type | Class I | 9 (9.4) | 2.08 (0.92-1.46) | |
Class II | 17 (17.7) | 2.43 (0.72-3.46) | 0.029 | |
Class III | 29 (30.2) | 3.92 (1.73 - 5.77) | ||
Class IV | 41 (42.7) | 5.41 (2.81-4.91) | ||
Ward type | General Surgery | 26 (27.1) | 2.78 ( 0.93-1.25) | |
Orthopaedic | 70 (72.9) | 4.13 (1.18 – 3.10) | 0.012 | |
Operation type | Elective | 35 (36.5) | 1.95 (1.24 - 4.65) | 0.038 |
Emergency | 61 (63.5) | 5.71 (2.09-5.38) | ||
Duration from | ≤ 1 day | 39 (40.6) | 0.83 (0.72-3.46) | 0.014 |
admission to operation | > 1 days | 57 (59.4) | 3.83 (1.94 - 2.07) | |
Duration from operation | <14 days | 33 (34.4) | 2.06 (0.72-3.46) | 0.008 |
to discharge | >14 days | 63 (65.6) | 4.92 (3.62-6.96) | |
Pre-operative | Cloxacilline | 60 (46.87) | 1.51 (1.92-3.06) | |
chemoprophylaxis | Ceftriazone | 36 (28.1) | 3.91 (2.67-4.01) | 0.021 |
Cloxacilline+ | 31 (24.2) | 3.16 (2.62-4.46) | ||
Ceftriazone |