Household clustering of asymptomatic malaria infections in Xepon district, Savannakhet province, Lao PDR

Malaria Journal

Table 7 Multivariate analysis of associations between malaria infection status principally determined by PCR and predictive factors

Predictor variables	Adjusted odds ratio^a	Adjusted 95 % confidence interval	P value
Individual level variables
Age (years)
<5	1.00	Reference
5–14	5.17	0.59–45.10	0.137
≥15	4.42	0.51–38.52	0.179
Gender
Female	1.00	Reference
Male	1.14	0.60–2.17	0.689
Working forest at midnight
No	1.00	Reference
Yes	1.62	0.33–8.09	0.555
Fever episode in the last 2 weeks
No	1.00	Reference
Yes	1.32	0.39–4.46	0.656
Household level variables
Person-per-net ratio
≤2.5	1.00	Reference
>2.5 and <4.0	0.62	0.26–1.49	0.287
≥4.0 or no net	0.59	0.19–1.83	0.360
Number of household members
<5	1.00	Reference
5–7	0.67	0.27–1.68	0.390
≥8	0.68	0.24–1.92	0.469
Household with at least one additional infected member
No	1.00	Reference
Yes	24.33	10.15–58.32	<0.001

^aAdjusted for age, gender, working in forest, fever episode, person per net ratio, number of household members, and at least one additional infected member

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