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Table 1 Socio-demographic characteristics and clinical variables of respondents who developed surgical site infection after surgery, 2016, Addis Ababa, Ethiopia

From: Prevalence and root causes of surgical site infections at an academic trauma and burn center in Ethiopia: a cross-sectional study

CharacteristicsSSI Infection status
Infected N (%)Non-infected N (%)Total
Age (years)18–247 (14.3%)42 (85.7%)49 (100%)
24–3415 (19.5%)62 (80.5%)77 (100%)
35–6023 (30.3)53 (69.7%)76 (100%)
> 6016 (34%)31 (66%)47 (100%)
SexMale30 (30%)70 (70%)100 (100%)
Female31 (20.8)118 (79.2)149 (100%)
ReligionOrthodox Christian42 (25%)126 (75%)168 (100%)
Muslim13 (26%)37 (74%)50 (100%)
Protestant6 (19%)25 (80.6%)31 (100%)
ResidenceAddis Ababa27 (26.7%)74 (73.3%)148 (100%)
Out of Addis Ababa34 (23%)114 (77%)101 (100%)
Single16 (27.1)43 (72.9%)59 (100%)
Married42 (24.1)132 (75.9%)174 (100%)
Marital statusDivorced2 (28.6%)5 (71.4%)7 (100%)
Widowed1 (11.1%)8 (88.9%)9 (100%)
Illiterate20 (37%)34 (63%)54 (100%)
EducationPrimary school19 (19.8)77 (80.2%)96 (100%)
Secondary school17 (25%)51 (75%)68 (100%)
Higher Education5 (16.1%)26 (83.9%)31 (100%)
Under weight(< 18)10 (52.6%)9 (47.4%)19 (100%)
BMI (kg/m2)normal weight(18–25)40 (22.5%)138 (77.5%)178 (100%)
Overweight (26–29)11 (21.2%)41 (78.5%)52 (100%)
I51 (25.4%)150 (74.6%)201 (100%)
ASA scoringII6 (14.3%)36 (85.7%)42 (100%)
III4 (66,7%)2 (33.3%)6 (100%)
Type of AnesthesiaGeneral anesthesia46 (26.1%)130 (73.9%)176 (100%)
Spinal anesthesia15 (20.5%)58 (79.5%)73 (100%)
< 2 h25 (20.9%)95 (79.2%)120 (100%)
Intra-operation duration1-2 h24 (25.5%)70 (74.5%)94 (100%)
> 2 h12 (34.3%)23 (65.7%)35 (100%)
Pre-operative hospital stay< 2 h30 (19%)128 (81%)158 (100%)
2 to 4 h15 (30.6%)34 (69.4%)49 (100%)
> 4 h16 (38.1%)26 (61.4%)42 (100%)
Wound ClassificationClean0125 (100%)125 (100%)
Clean-contaminated48 (43.6%)62 (56.4%)110 (100%)
Contaminated7 (50%)7 (50%)14 (100%)