Table 2.

Factors associated with malaria infection in the univariate and multivariate analysis

	Number of children	% with malaria infection (%)	Univariate			Multivariate
			OR	96% CI	p-value	OR	96% CI	p-value
Altitude (metres)
Low (1128–1264)	1300	74.7	1
Medium (1265–1352)	1291	68.1	0.38	0.28–0.50	0.001	0.78	0.42–1.43	0.416
High (1353–1654)	1266	51.0	0.14	0.10–0.20	0.001	0.27	0.14–0.55	< 0.001
Age
< 1 year	384	50.5	1
2–4 years	1062	63.0	1.86	1.44–2.41	< 0.001	2.59	1.31–5.11	0.006
5–14 years	2414	67.7	2.52	1.99–3.20	< 0.001	3.82	1.89–7.72	< 0.001
Improved housing structure
No	589	76.9	1			1
Yes	3272	62.5	0.32	0.22–0.48	< 0.001	0.27	0.13–0.54	< 0.001
Socio economic status
Poorest	1261	72.6	1			1
Middle	1264	64.3	0.72	0.59–0.86	0.001	0.98	0.51–1.89	0.961
Least poor	1258	57.6	0.50	0.42–0.60	< 0.001	1.07	0.52–2.19	0.862
Adequate access to LLINs
No	3167	66.0	1			1
Yes	643	58.8	0.68	0.57–0.83	< 0.001	0.57	0.34–0.98	0.042
Individual net age
< 2 years	350	52.9	1			1
2–3 years	295	64.1	2.32	1.26–4.28	0.007	1.89	1.01–3.53	0.044
4 years and more	299	65.9	2.37	1.28–4.37	0.006	1.90	1.02–3.58	0.004
Sex
Male	1869	66.0	1
Female	1870	63.4	0.87	0.75–1.01	0.061
Eaves of the house
Open	2334	69.2	1
Closed	1478	57.9	0.59	0.51–0.69	< 0.001
Livestock present
No	1026	67.6	1
Yes	2786	63.7	0.77	0.65–0.91	0.002
Animals kept inside the house
No	1857	63.5	1
Yes	935	63.6	0.97	0.81–1.17	0.757
Head of household attended school
No	1007	71.4	1
Yes (any schooling)	2791	62.4	0.74	0.62–0.88	0.001
IRS 18 months before
No	2798	67.0	1
Yes	979	59.1	0.84	0.70–1.01	0.06
Household owns at least 1 net
No	1165	69.1	1
Yes	2647	62.6	0.71	0.60–0.83	< 0.001
Individual usage of LLIN
Don’t use net	2276	66.4	1
Use net	1045	61.2	0.69	0.50–0.94	0.018
Individual LLIN condition
Use good condition net (PHI > 64)	154	68.2	1
Use moderate condition net (PHI 65–642)	206	61.7	0.65	0.28–1.49	0.307
Use torn net (PHI > 643)	221	63.8	0.77	0.34–1.77	0.544