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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