Table 5.

Multivariate logistic regression models of risk factors for dengue infection

	OR	95% Confidence interval	P value
Final model of risk factors for past dengue infection (N = 1,939)
Age (years)
5–10	1	−	−
11–15	2.65	1.98–3.54	< 0.001
16–20	5.72	3.95–8.29	< 0.001
21–30	9.31	6.44–13.46	< 0.001
Water storage in containers
No	1	−	−
Yes	1.35	1.07–1.71	0.013
Number of years living  in household
0–16	1	−	−
≥ 17	1.18	1.06–1.32	0.004
Type of housing
House/apartment/other	1	−	−
Rancho*	7.65	0.99–59.15	0.051
Final model of risk factors for recent dengue infection (N = 1,965)
Age (years)
5–10	1	−	−
11–15	1.92	1.16–3.17	0.011
16–20	2.77	1.70–4.52	< 0.001
21–30	2.07	1.26–3.39	0.004
Place of residence
Candelaria/Cooperativa	1	−	−
Caña de Azúcar	1.71	1.26–2.31	< 0.001
Used car tires outdoors
No	1	−	−
Yes	1.56	1.01–2.40	0.046
Having a job
No	1	−	−
Yes	0.56	0.36–0.86	0.008
Number of rooms in the household
1–4	1	−	−
≥ 5	0.73	0.53–1.00	0.053

^*The word rancho in Venezuela is used to define a shack or informal housing typical of slum areas.