Table 1. Multivariable associations with P. vivax infection.

		n	PR	AOR	CI95	p-value a
Region	Bay	1,161	13.7	Reference group
	Channel	463	13.2	1.01	[0.71, 1.44]	<0.001
	Anchor	857	3.9	0.28	[0.18, 0.44]
	North Coast	523	31.7	2.52	[1.90, 3.34]
	South Coast	497	9.9	0.74	[0.52, 1.06]
Age group (years)	<2	166	3	Reference group
	2–4	370	5.4	1.90	[0.68, 5.30]	<0.001
	5–9	517	15.1	5.46	[2.13, 14.01]
	10–14	499	24.3	8.41	[3.31, 21.38]
	15–19	263	14.5	5.03	[1.88, 13.40]
	20–39	940	12.6	4.75	[1.88, 12.02]
	≥40	746	11.8	4.40	[1.72, 11.23]
Head of the household speaks English	No	661	18.5	Reference group
	Yes	2,465	12	0.76	[0.50, 0.98]	0.030
Feeling unwell	No	685	14.3	Reference group
	Yes	2,793	9.9	0.65	[0.48, 0.89]	0.001
Residency (lived in the village for 2 or more months)	No	169	8.3	Reference group
	Yes	3,317	13.7	1.91	[1.05, 3.48]	0.004
Living in a household with at least 1 other P. vivax carrier	No	2,235	63.8	Reference group
	Yes	1,266	36.2	1.75	[1.39, 2.20]	<0.001

n = sample size, PR = prevalence of P. vivax infection, AOR = adjusted odds ratio (predicted difference in odds of P. vivax infection compared to the baseline odds of P. vivax infection of the reference group), CI₉₅ = 95% confidence intervals.

^aOverall p-values for variables with multiple levels (age group and region) were derived by use of the likelihood ratio test comparing expanded (includes variable of interest) and nested (does not include variable of interest) models. P-values for the remaining variables are derived from the Wald test.