Table 3. RVFV-IgG prevalence risk analysis for age, gender, ecosystem, occupation.

		Mean or frequency in positive samples	Mean or frequency in negative samples	p-value	OR	p-value (Chi-Square or T test)
Gender
	Male	60.69%	46.74%	0.00032	1.75 [1.25,2.46]	0.00089
	Female	39.31%	53.28%	0.00035	0.57 [0.41,0.80]	0.00089
Age		50.68%	46.85%	0.0005		0.0006
	[15–33[	11.03%	20.31%	0.0024	0.49 [0.29, 0.83]	0.0058
	[33–44[	20.68%	19.69%	0.37	1.04 [0.69 , 1.57]	0.75
	[44–54[	18.62%	20.91%	0.24	0.87 [0.57 , 1.34]	0.52
	[54–61[	24.13%	22.20%	0.28	1.11 [0.76 , 1.64]	0.56
	[61–90]	25.52%	17.18%	0.0029	1.69 [1.16 , 2.48]	0.0082
Ecosystem
	Forest	65.5%	77.0%	0.0004	0.57 [0.40, 0.80]	0.0013
	Lakes	26.2%	10.1%	<0.00001	3.20 [2.18 , 4.70]	<0.00001
	Savanna	8.3%	12.9%	0.05	0.60 [0.33 , 1.09]	0.10
Occupation
	Farmer	72.41%	69.73%	0.23	1.12 [0.78 , 1.59]	0.50
	Hunter	13.10%	9.97%	0.10	1.36 [0.83 , 2.23]	0.21
	Others	14.48%	20.26%	0.04	0.67 [0.42 , 1.07]	0.09

Confident Intervals of Odd-Ratios correspond to 5% risk.