Comparison of Epidemiological Methods for Estimation of Hepatitis B Incidence and Residual Risk for Blood Donors in Southern Brazil

Table 1

Demographic characteristics of blood donor candidates, collection site, and intended recipient in southern Brazil, 2004–2006.

Donor profile	Categories	First-time donors		Repeat donors		All donors
		𝑛	%	𝑛	%	𝑛	%
Sex	Male	20001	33.90	10250	28.12	30251	31.70
	Female	38997	66.10	26195	71.88	65192	68.30
Age (years)	18-19	5805	9.84	1712	4.70	7517	7.88
	20–29	24859	42.14	15423	42.32	40282	42.21
	30–39	15322	25.97	10042	27.55	25364	26.58
	40–49	9382	15.90	6471	17.76	15853	16.61
	50–65	3630	6.15	2797	7.67	6427	6.73
Blood collection site	Blood bank	53600	90.85	34355	94.27	87955	92.15
	Mobile unit	5398	9.15	2090	5.73	7488	7.85
Donation directed to	Any recipient	33591	56.94	27731	76.09	61322	64.25
	Specific recipient	25164	42.65	8679	23.81	33843	35.46
	Self	24	0.04	14	0.04	38	0.04