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Table 3 Univariate analysis of dengue IgG seropositivity in Taiwan

From: Retrospective Seroepidemiology study of dengue virus infection in Taiwan

Characteristics No. positive/ No. tested Weighted prevalence (%)   Odds Ratio 95% CI *P value
Gender       0.796
 Male 18/517 3.27   Referent   
 Female 266/791 3.52   1.082 (0.594, 1.971)  
Age groups (years)       <  0.0001
 0–9 6/246 2.41 (2.15, 2.67) Referent   
 10–19 2/154 1.21 (1.09, 1.33) 0.498 (0.082, 3.004)  
 20–29 3/180 1.62 (1.49, 1.74) 0.666 (0.132, 3.36)  
 30–39 9/196 3.38 (3.23, 3.54) 1.419 (0.356, 5.652)  
 40–49 2/178 0.78 (0.69, 0.86) 0.318 (0.047, 2.154)  
 50–59 2/177 1.23 (0.13, 1.33) 0.504 (0.089, 2.842)  
 60–69 9/119 8.33 (7.79, 8.88) 3.684 (0.932, 14.555)  
 ≥ 70 11/58 18.25 (17.41,19.09) 9.046 (2.496, 32.793)  
Total   3.40 (2.30, 4.49)    
Locality       0.001
 Taipei 15/ 494 2.76   Referent   
 Taoyuan 11/ 489 1.81   0.651 (0.275, 1.537)  
 Tainan 18/325 6.64   2.504 (1.262, 4.969)  
Nationality       < 0.0001
 Taiwanese 36/1227 3.06   Referent   
 Immigrants 6/21 28.82   12.821 (4.180, 39.325)  
Household size      0.302
 1–4 17/648 2.67   Referent   
 ≥ 5 16/455 3.76   1.424 (0.725, 2.795)  
  1. CI Confidence interval. Prevalence, Odds Ratio, and CIs are based on weighted data
  2. Missing data: Nationality (n = 60), Household size (n = 205). Percentages determined by excluding those with missing data from the denominator
  3. One sample collected from one 51-year-old male, who lived in Taipei with a household size of four, showed positive for both IgM and IgG
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