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Table 2 Seropositivity of HIV, HBV, HCV and Treponema pallidum among blood donors

From: Seroprevalence of human immunodeficiency virus, hepatitis B and C viruses, and Treponema pallidum infections among blood donors at Shiyan, Central China

Year Total screened No. HIV No. (%, 95 % CI) HBV No. (%, 95 % CI) HCV No. (%, 95 % CI) T. pallidum No. (%, 95 % CI)
2010 35 981 5 (0.01, 0–0.02) 101 (0.28, 0.23–0.33) 39 (0.11, 0.08–0.14) 173 (0.48, 0.41–0.55)
2011 40 763 24 (0.06, 0.04–0.08) 232 (0.57, 0.5–0.64) 66 (0.16, 0.12–0.2) 205 (0.50, 0.43–0.57)
2012 41 587 26 (0.06, 0.04–0.08) 249 (0.60, 0.53–0.67) 111 (0.27, 0.22–0.32) 282 (0.68, 0.6–0.76)
2013 45 617 31 (0.07, 0.05–0.09) 222 (0.49, 0.43–0.55) 78 (0.17, 0.13–0.21) 299 (0.66, 0.59–0.73)
2014 47 691 73 (0.15, 0.12–0.18) 283 (0.60, 0.53–0.67) 120 (0.25, 0.21–0.29) 239 (0.50, 0.44–0.56)
Total 211 639 159 (0.08, 0.07–0.09) 1 087 (0.51, 0.48–0.54) 414 (0.20, 0.18–0.22) 1 198 (0.57, 0.54–0.6)
  1. Note: No., N/A, and 95 % CI represent Number, No data, and 95 % confidence interval, respectively