Table 1. Multivariate Analysis for Risk of Gametocyte Positivity During the Trimester.

A- Variable	Category	ORa	95% CI
Age (years)	< = 5	3.26	3.00	3.53
	]5–10]	2.04	1.75	2.32
	]10–15]	1.72	1.35	2.08
	>15	Ref
Drug period	Quinine	Ref
	Chloroquine	1.19	0.99	1.39
	Fansidar	0.35	0.008	0.69
	ACT	0.34	0.005	0.67
P. falciparum clinical episode in trimester	No	Ref
	Yes	1.84	1.58	2.10
ABO Blood group	AB	Ref
	A	1.32	1.04	1.60
	B	1.72	1.44	2.01
	O	1.86	1.63	2.08

Abbreviations: ORa, adjusted Odds Ratio; CI, Confidence Interval; Ref, reference level; ACT, Artemisinin Combination Therapy.