Table 2.

House-hold factors associated with the risk of malaria (univariate analysis) (n = 906)

Variable	Cases (%)	Controls (%)	Odds ratio (95% CI)		P-value
Roof
Grass-thatch	10.30	5.30	Ref
Iron-roof	89.70	94.70	0.49	0.29–0.82	0.0056
Wall
Mud-wall	93.00	84.90	Ref
Permanent	7.00	15.10	0.42	0.26–0.69	0.0005
Floor
Earth floor	95.00	86.90	Ref
Cemented	5.00	13.10	0.35	0.20–0.61	0.0002
Eaves
Open eaves	49.00	32.10	Ref
Closed eaves	51.00	67.90	0.49	0.37–0.65	< 0.0001
Screens
Yes	1.00	0.80	Ref
No	99.00	99.20	0.83	0.20–3.50	1.00
No. of rooms
> 5	9.90	10.60	Ref
≤ 5	90.10	89.40	1.07	0.68–1.70	0.7642