Table 1.

Distribution of individual blood donors according to exposure status and subclinical malarial infections in a cross-sectional study design, São Paulo State, Brazil, Aug 2008–Mar 2010

	Disease (+)*	Disease (−)	Total	Prevalence**
Exposed (+)	61	439	500	12.20
Exposed (−)	23	585	608	3.78
Total	84	1,024	1,108	7.58

*In each group (exposed and non-exposed), 1 subject was infected by both parasites.

**Cases per 100 population units.

Prevalence ratio (95% CI) = 3.23 (2.03, 5.13).