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Table 1 Profile of patients who undergone for surgical procedures in Tikur Anbessa Specialized Hospital, December–February 2017/18 (n = 406)

From: Efficiency of blood utilization in elective surgical patients

Variables Frequency Percent (%)
Sex
 Male 196 48.3
 Female 210 51.7
Department/Unit responsible
 Department of surgery
  General and vascular 61 15.0
  Cardiothoracic 35 8.6
  Neurosurgery 41 10.1
  Urology/Endourology 65 16.0
  Pediatric surgery 34 8.4
 Orthopedic surgery 89 21.9
 OBGYN
  Gynecology 49 12.1
  Obstetrics 31 7.6
 ENT 1 0.2
Blood type of patient
 A+ 105 25.9
 A 8 2.0
 B+ 68 16.7
 B 68 1.0
 O+ 179 44.1
 O 12 3.0
 AB+ 29 7.1
 AB 0 0.0