Table 4 Multivariate logistic regression model of risk factors associated with dengue IgG seropositivity in Taiwan

Nationality

<  0.0001

 Taiwanese

36/1227

Referent

 Immigrants

6/21

51.887

(12.766, 210.898)

<  0.0001

<  0.0001

 0–9

6/246

(referent)

–

 10–19

2/154

0.574

(0.084, 3.919)

0.571

 20–29

3/180

0.840

(0.148, 4.754)

0.844

 30–39

9/196

1.452

(0.315, 6.698)

0.632

 40–49

2/178

0.299

(0.039, 2.294)

0.246

 50–59

2/177

0.261

(0.022, 3.118)

0.289

 60–69

9/119

4.776

(1.045, 21.839)

0.044

 ≥ 70

11/58

13.283

(3.144, 56.112)

< 0.0001

Locality

< 0.001

 Taipei

15/ 494

(referent)

 Taoyuan

11/ 489

0.526

(0.188, 1.467)

0.220

 Tainan

18/325

3.262

(1.518, 7.007)

0.000