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

Table 6

P. falciparum exposure risk categorization of the blood donors.

		RDT Positive (n = 91)		Microscopy (n = 57)		Noninfected
Risk categorization	Weighted point (range)	Frequency	Percent (%)	Frequency	Percent (%)	Frequency	Percent (%)
Negligible risk	≤2	6	6.6	0	0.0	279	76.6
Tolerable risk	3-4	9	9.9	3	5.2	59	16.2
Undesirable risk	5–8	59	64.8	40	70.1	15	4.1
Intolerable risk	>8	17	18.7	14	24.6	11	3.0
Deferral	≥5	76	83.5	54	94.7	26	7.1