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Table 3 HTLV-1 seropositivity rates based on demographic characteristics and history of donation among Iranian blood donors during a 5-year period

From: Seroprevalence and geographical distribution of human T-lymphotropic virus type 1 among volunteer blood donors in endemic areas of Iran

Year HTLV-1 positive (n = 1840) No (%) Characteristics
Mean age Gender Marital status Donation type
Male (n = 1540) No (%) Female (n = 300) No (%) Married (n = 1603) No (%) Single (n = 237) No (%) First time (n = 1634) No (%) Elapsed (n = 121) No (%) Regular (n = 85) No (%)
2009 2010 2011 2012 2013 475 (0.13%) 419 (011%) 388 (0.1%) 272 (0.069%) 286 (0.07%) 40.20 ± 10.820 39.88 ± 11.133 39.14 ± 10.637 39.28 ± 10.813 38.27 ± 10.184 401 (0.14%) 354 (0.109%) 321 (0.09%) 226 (0.06%) 238 (0.063%) 74 (0.107%) 65 (0.20%) 67 (0.3%) 46 (0.2%) 48 (0.24%) 422 (0.16%) 364 (0.13%) 340 (0.11%) 228 (0.07%) 249 (0.08%) 53 (0.06%) 55 (0.06%) 48 (0.05%) 44 (0.05%) 37 (0.04%) 373 (0.3%) 373 (0.3%) 359 (0.3%) 256 (0.28%) 273 (0.27%) 39 (0.05%) 32 (0.04%) 21 (0.02%) 16 (0.01%) 13 (0.01%) 63 (0.04%) 14 (0.008%) 8 (0.004%) 0 0
p-value* <0.0001 <0.0001 <0.0001
  1. *Chi square test