The Use of Screening Algorithm to Defer Blood Donors with Subclinical Malaria

Table 4

Logistic regression analysis identifying transmission factors associated with P. falciparum infection in blood donors.

Transmission factor	Response		(%) infected	value	OR	OR (95% CI)
Cohabitation/shared room	Yes	354	68 (19.2)	0.215	0.73	0.11–3.0
	No	101	23 (22.8)		1
History of roommate(s) with malaria in past 3 months	Yes	14	3 (21.4)	0.115	1.01	0.23–6.1
	No	441	88 (20.0)		1
Living close to mosquito breeding sites	Yes	136	55 (40.4)	<0.001	8.8	2.9–15.1
	No	319	36 (11.3)		1
Bedroom without ceiling	Yes	15	9 (60.0)	<0.001	9.1	3.0–18.1
	No	440	82 (18.6)		1
Staying outdoor at night > than 2 hours	Yes	97	43 (44.3)	0.008	3.9	1.2–10.1
	No	358	48 (13.4)		1
Regular means of commuting	Self-driven vehicle	131	29 (22.1)		1
	Public vehicle	98	31 (31.6)	0.034	2.5	1.01–7.33
	Walking	98	10 (10.2)	0.222	0.67	0.03–1.31
	Riding	128	21 (16.4)	0.105	0.88	0.11–2.02
Clinical malaria within past year	Yes	81	22 (27.1)	0.09	1.3	0.45–4.2
	No	374	69 (18.4)		1
Frequent exposure to mosquito bites	Yes	47	16 (34.0)	0.011	3.1	1.1–5.3
	No	408	75 (18.4)		1