Table 4. Risk factors associated with anti-dengue IgG seropositivity in Nuevo Laredo/Laredo residents, by univariate analysis.
| Factor | Prevalence ratio | Mean value for IgG seropositive residents | Mean value for IgG seronegative residents | (95% confidence interval) or p value |
|---|---|---|---|---|
|
No air-conditioning
|
1.65
|
—
|
—
|
(1.27 to 2.15)
|
|
No. occupants
|
—
|
4.7
|
4.3
|
p=0.05
|
|
Lot size (m2)
|
—
|
377
|
395
|
p=0.03
|
|
No. room air conditioners
|
—
|
0.4
|
0.7
|
p=0.002
|
| Distance to neighbor (m) | — | 3.3 | 3.9 | p=0.03 |