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

From: Retrospective Seroepidemiology study of dengue virus infection in Taiwan

Characteristics No. positive/ No. tested Adjusted OR 95% CI P value
Nationality     <  0.0001
 Taiwanese 36/1227 Referent   
 Immigrants 6/21 51.887 (12.766, 210.898) <  0.0001
Age groups (years)    <  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
  1. CI Confidence interval. Adjusted OR, and CIs are based on weighted data
  2. Missing data: Nationality (n = 60). Percentages determined by excluding those with missing data from the denominator
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