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Table 1 Demographic characteristics of candidate blood donors between 2005 and 2014 in Shenzhen, China

From: Prevalence of hepatitis B surface antigen (HBsAg) in a blood donor population born prior to and after implementation of universal HBV vaccination in Shenzhen, China

Year Number of donors % of donors in various categories Number of donations
  First-time Repeat Male Female Nativea Other originsa
2005 42,638 67.5 32.5 68.1 31.9 27.7 72.3 52,398
2006 44,411 64.6 35.4 69.1 30.9 28.8 71.2 55,117
2007 45,248 50.2 49.8 68.2 31.8 27.4 72.6 58,051
2008 47,086 60.0 40.0 68.5 31.5 26.7 73.3 60,794
2009 48,341 58.8 41.2 68.3 31.7 27.9 72.1 64,496
2010 57,248 62.1 37.9 66.2 33.8 28.4 71.6 73,953
2011 66,232 61.4 38.6 66.2 33.8 30.4 69.6 83,353
2012 73,194 63.8 36.2 66.3 33.7 31.6 68.4 92,033
2013 72,314 56.2 43.8 66.1 33.9 32.2 67.8 92,125
2014 72,433 60.6 39.4 63.4 36.6 33.8 66.2 92,380
Total 569,145 60.5 39.5 66.7 33.3 29.9 70.1 724,700
  1. aAccording to the initial identity card registration that indicates the birth place, blood donors were classified as native born in Guangdong province or of other origins (born in other provinces of China)