Table 2. Contingency Table of the Effect of Household Possession of Bed Nets, on the Risk of Fever in Children.

Category	No. with Fever	No. with no Fever	Total	Proportion with fever	Odds Ratio (95% Confidence Interval)	Prevention Fraction. (95% Confidence Interval)	Statistic
Bed nets	1525	1560	3085	49.4%
No Bed nets	457	366	823	55.6%	0.783	0.217
Total	1982	1926	3908	50.72%	(0.67–0.92)	(0.08–0.33)	Pr>chi2 = 0.0
Intervention	979	1080	2059	47.6%
Control group	1003	846	1849	54.4%	0.765	0.235
Total	1982	1926	3908	50.72%	(0.67–0.87)	(0.13–0.33)	Pr>chi2 = 0.0
Post-intervention	693	938	1631	42.5%
Pre-intervention	1289	988	2277	56.5%	0.566	0.434
Total	1982	1926	3908	50.72%	(0.50–0.65)	(0.36–0.50)	Pr>chi2 = 0.0