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Table 2 Seroprevalence of anti-dengue virus IgM stratified by age groups and study sites

From: Seroepidemiology of dengue virus infection among adults during the ending phase of a severe dengue epidemic in southern Taiwan, 2015

  West Central North District East District A factory in Ana District A factory in Yongkang District Total
Age group +/N +/N +/N +/N +/N +/N
(%) (%) (%) (%) (%) (%)
20–34 2/27 0/23 0/40 5/243 1/177 8/510
(7.4) (0.0) (0.0) (2.1) (0.6) (1.6)
35–49 9/48 2/40 1/65 0/77 1/114 13/344
(18.8) (5.0) (1.5) (0.0) (0.9) (3.8)
50–64 23/101 10/79 8/134 0/5 0/11 41/330
(22.8) (12.7) (6.0) (0.0) (0.0) (12.4)
≥65 17/50 1/33 15/124    33/207
(34.0) (3.0) (12.1)    (15.9)
Total 51/226 13/175 24/363 5/325 2/302 95/1391
(22.6) (7.4) (6.6) (1.5) (0.7) (6.8)
Age-standardized 18.6% 5.4% 3.7% 0.6% 0.4% 7.1%