Table 1.

Transfusion-transmissible infections in blood donors at University of Calabar Teaching Hospital during the period of 2005–2016

Year	No. of blood donors screened	Prevalence
		HBV		HCV		Syphilis		HIV
		N.	%	N.	%	N.	%	N.	%
2005	1410	79	5.6	58	4.1	54	3.8	81	5.7
2006	1871	82	4.4	108	5.8	80	4.2	103	5.5
2007	2110	94	4.5	48	2.3	76	3.6	121	5.7
2008	2118	98	4.6	52	2.5	44	2.1	80	3.7
2009	2225	115	5.1	25	1.1	83	3.7	152	6.8
2010	2327	77	3.3	61	2.6	83	3.6	124	5.3
2011	3234	121	3.7	272	8.4	183	5.7	118	3.6
2012	2008	81	4.0	67	3.3	78	3.9	59	2.9
2013	1611	60	3.7	30	1.9	15	0.9	96	6.0
2014	1883	77	4.1	79	4.2	43	2.3	57	3.0
2015	2178	60	2.8	39	1.8	9	0.4	18	0.8
2016	2004	69	3.4	57	2.8	38	19	35	1.7
Total	24,979	1013	4.1	896	3.6	786	3.6	1044	4.2
P value		X2(11) N = 32.153, P = 0.001		X2(11) = 316.068, P <  0.01		X2(11) N = 171.003, P <  0.01		X2(11) N = 182.261, P <  0.01
Gender
Male	24,654 (98.70)	1012	4.1	896	3.6	786	3.2	1044	4.2
Female	325 (1.30)	1	0.3	0	0	0	0	0	0

N absolute number of positive blood donors, % percentage of positive blood donors, P significance of year-to-year fluctuations, determined by chi square test, HBV Hepatitis B virus, HCV Hepatitis C virus, HIV Human Immunodeficiency Virus