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Table 4 Seroprevalence of anti-dengue virus IgG 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 6/27 0/23 3/40 11/243 6/177 26/510
(22.2) (0.0) (7.50) (4.5) (3.4) (5.1)
35–49 9/48 8/40 6/65 4/77 9/114 36/344
(18.8) (20.0) (9.23) (5.2) (7.9) (10.5)
50–64 42/101 16/79 22/134 0/5 0/11 80/330
(41.6) (20.3) (16.42) (0.0) (0.0) (24.2)
≥65 35/50 15/33 50/124    100/207
(70.0) (45.5) (40.32)    (48.3)
Total 92/226 39/175 81/363 15/325 15/302 242/1391
(40.7) (22.3) (22.3) (4.6) (5.0) (17.4)
Age-standardized 32.6% 17.7% 14.8% 2.9% 3.5% 17.6%