Table 2. Prevalence and factors associated with dengue virus among persons aged 15–64 years, Kenya, 2007.

Variable	Total (N)	Total—Pos (n)	Total—Pos % (95% confidence interval)	Unadjusted odds ratio (95% confidence interval)	p_value	Adjusted odds ratio (95% confidence interval)	M_p_value
Sex
Male	430	57	12.3 (8.0–16.5)	REF
Female	661	86	12.6 (7.9–17.4)	1.03 (0.65–1.64)	0.89
Age category (years)
15–29	529	44	8.7 (4.1–13.2)	REF	0.06
30–49	395	62	13.3 (9.3–17.4)	1.62 (0.84–3.12)		1.51 (0.74–3.10)	0.26
50–64	167	37	23.9 (9.4–38.3)	3.3 (1.22–8.9)		3.06 (0.99–9.52)	0.05
Education level
No primary	223	55	25.8 (16.4–35.2)	3.44 (1.47–8.06)	< .01	1.20 (0.43–3.38)	0.73
Incomplete primary	295	26	6.5 (3.8–9.2)	0.69 (0.34–1.4)		0.54 (0.22–1.35)	0.19
Complete primary & secondary +	573	62	9.2 (4.5–13.8)	REF
Wealth Quintiles
Lowest	234	44	18.4 (11.2–25.7)	1.87 (0.82–4.25)	0.04	0.50 (0.20–1.26)	0.14
Second	189	17	11.6 (4.0–19.2)	1.08 (0.41–2.89)		0.46 (0.16–1.34)	0.16
Middle	188	21	9.4 (4.9–14.0)	0.86 (0.36–2.06)		0.44 (0.16–1.22)	0.11
Fourth	186	26	11.5 (6.3–16.7)	1.07 (0.48–2.41)		0.72 (0.24–2.15)	0.56
Highest	294	35	10.8 (4.2–17.4)	REF
Province
Nairobi	153	8	3.5 (0.5–6.4)	0.11 (0.04–0.29)	< .01	0.07 (0.01–0.37)	< .01
Central	150	4	2.5 (0.0–5.2)	0.08 (0.03–0.24)		0.06 (0.02–0.25)	< .01
Coast	129	78	60.6 (51.2–70.1)	4.66 (2.68–8.13)		4.92 (2.19–11.04)	< .01
Eastern	112	6	3.2 (0.3–6.1)	0.1 (0.04–0.28)		0.11 (0.03–0.37)	< .01
North Eastern	140	32	24.8 (17.5–32.1)	REF
Nyanza	154	5	2.7 (0.3–5.0)	0.08 (0.03–0.22)		0.10 (0.03–0.33)	< .01
Rift Valley	117	5	9.6 (0.0–22.0)	0.32 (0.07–1.41)		0.29 (0.10–0.80)	0.02
Western	136	5	2.4 (0.0–4.8)	0.07 (0.02–0.23)		0.10 (0.03–0.33)	< .01

cut off point to include factors in multivariate is pvalue <0.1

p value is the global p value for the bivariate variable

M_OR_CI is the multivariate odds ratio

M_p_value is the category multivariate p value

REF- reference

+ = and above

N, n = number of persons