Variable Frequency (n=196) Percentage (%) Sex                                  Male 81 41.3       Female 114 58.7 Age      Mean (±SD) 37.84 19.42 Comorbidities       Diabetes Mellitus (DM) 1 0.5       Hypertension (HTN) 11 5.6       Malnutrition 2 1.0      On corticosteroids 3 1.5       HIV 1 .5       Tuberculosis 4 2.0       DM+HTN 1 0.5       No comorbidities 173 88.3 Duration of Hospital Stay            Mean (± SD) 10.39 6.07 Type of Ward     General Surgery 100 51.0     Orthopedics 17 8.7     Pediatrics 27 13.8     Gyn/obstetrics 37 18.9     Miscellaneous 15 7.7 Type of Surgery      Elective 148 75.5      Emergency 48 24.5 Type of Procedure      Urology 25 12.8      Head and Neck 21 10.7      Neurosurgery 11 5.6      Orthopedics 22 11.2      Gynecology/Obstetrics 37 18.9      Abdominal 53 27.0      Skin and deep tissue 24 12.2      Vascular 3 1.5 Wound Class       Clean 82 41.8       Clean-contaminated 88 44.9       Contaminated 26 13.3

Table 2: Demographic and surgical data of study participants at Ayder Referral Hospital, Ethiopia (12th March to 28th April, 2015).