Table 2. Associations between SAO and prevalence of P. vivax and P. falciparum infection in infants 3–21 mo.

Species and Age Groups	Genotype	LDR-FMAa			LMb
		PR	aORc	95% CI	PR	aORc	95% CI
P. vivax
All children	wt/wt	23.1%	—	—	13.1%	—	—
	wt/Δ27	19.7%	0.84	0.66–1.05	9.7%	0.72	0.50–1.04
		—	—	(p = 0.13)	—	—	(p = 0.08)
3–12 mo	wt/wt	19.1%	—	—	9.6%	—	—
	wt/Δ27	17.8%	0.93	0.69–1.25	10.4%	1.12	0.75–1.68
		—	—	(p = 0.64)	—	—	(p = 0.59)
15–21 mo	wt/wt	30.3%	—	—	18.9%	—	—
	wt/Δ27	23.1%	0.72	0.51–0.99	8.5%	0.39	0.23–0.67
		—	—	(p = 0.044)	—	—	(p = 0.001)
P. falciparum
All children	wt/wt	5.2%	—	—	2.9%	—	—
	wt/Δ27	8.4%	1.65	1.17–2.32	4.1%	1.51	0.97–2.36
		—	—	(p = 0.004)	—	—	(p = 0.067)
3–12 mo	wt/wt	4.0%	—	—	2.4%	—	—
	wt/Δ27	6.7%	1.67	1.07–2.62	3.5%	1.45	0.85–2.48
		—	—	(p = 0.024)	—	—	(p = 0.18)
15–21 mo	wt/wt	7.3%	—	—	3.6%	—	—
	wt/Δ27	11.4%	1.62	1.00–2.64	5.1%	1.41	0.71–2.81
		—	—	(p = 0.052)	—	—	(p = 0.32)

^aInfections diagnosed by post-PCR LDR-FMA.

^bInfections diagnosed by expert LM.

^cAORs with analyses adjusted for the following variables: IPTi treatment group, insecticide treatment bednet usage, village of residence.

PR, prevalence rate.