Efficiency of blood utilization in elective surgical patients

Table 2 Perioperative blood work versus C/T Ratio, TP and TI for patients for whom blood was cross matched for surgical procedures in Tikur Anbessa Specialized Hospital, December–February 2017/18(n = 406)

Variables	Cross matched patients (n)	Transfused patients (n)	Cross matched units	Transfused units	C/T ratio	TP	TI
Hg in mg/dl
≥ 16	39	6	97	13	7.46	15.38	0.33
12–16	251	25	553	54	10.24	9.96	0.22
10–12	72	15	167	24	6.96	20.83	0.33
7–10	35	12	67	21	3.19	34.29	0.60
< 7	4	4	7	6	1.17	100.0	1.5
Education level of operating surgeon
Consultant	306	52	698	101	6.91	16.99	0.33
Fellow	22	4	46	6	7.67	18.18	0.27
Senior resident	60	4	120	7	17.14	6.67	0.12
Junior resident	17	2	34	4	8.50	11.76	0.24
Estimated blood loss (in ml)
< 750	372	32	810	58	13.97	8.60	0.16
750–1500	24	21	66	43	1.53	87.50	1.79
1500–2000	8	8	20	17	1.18	1.00	2.13
2000–3000	1	1	2	0	… .	1.00	0.00

ISSN: 1472-6963