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Table 2 Demographic characteristics distribution of blood donors by TTIs status*

From: Demographic characteristics of transfusion-transmitted infections among blood donors in China

Characteristics HBV HCV HIV Syphilis (TP) TTIs Non-reactive for TTIs Sum
n=309 n=162 n=116 n=341 n=928 n=1048 n=1976
Age (years old)
 18–25 71 (3.6%) 48 (2.4%) 47 (2.4%) 62 (3.1%) 228 (11.5%) 369 (18.7%) 597 (30.2%)
 26–35 90 (4.6%) 36 (1.8%) 45 (2.3%) 103 (5.2%) 274 (13.9%) 330 (1.7%) 307 (15.5%)
 36–45 88 (4.5%) 44 (2.2%) 17 (0.9%) 121 (6.1%) 270 (13.7%) 226 (11.4%) 496 (25.1%)
 46–55 59 (3.0%) 33 (1.7%) 6 (0.3%) 53 (2.7%) 151(7.6%) 117 (5.9%) 268 (13.6%)
 >55 1 (0.1%) 1 (0.1%) 1 (0.1%) 2 (0.1%) 5 (0.3%) 6 (0.3%) 11 (0.6%)
Gender
 Female 87 (4.4%) 47 (2.4%) 5 (0.3%) 153 (7.7%) 292 (14.8%) 330 (16.7%) 622 (31.5%)
 Male 222 (11.2%) 115 (5.8%) 111 (5.6%) 188 (9.5%) 636 (32.2%) 718 (36.3%) 1354 (68.5%)
Previous donation history
 Repeat donor 9 (0.5%) 12 (0.6%) 37 (1.9%) 48 (2.4%) 106 (5.4%) 328 (16.6%) 434 (22.0%)
 First-time donor 300 (15.2%) 150 (7.6%) 79 (4.0%) 293 (14.8%) 822 (41.6%) 720 (36.4%) 1542 (78.0%)
Ethnicity
 Minority 13 (0.7%) 9 (0.5%) 5 (0.3%) 29 (1.5%) 56 (2.8%) 45 (2.3%) 101 (5.1%)
 Han 296 (15.0%) 153 (7.7%) 111 (5.6%) 312 (15.8%) 872 (44.1%) 1003 (50.8%) 1875 (94.9%)
Marital status
 Married 184 (9.3%) 80 (4.0%) 42 (2.1%) 208 (10.5%) 514 (26.0%) 559 (28.3%) 1073 (54.3%)
 Unmarried 125 (6.3%) 82 (4.1%) 74 (3.7%) 133 (6.7%) 414 (21.0%) 489 (24.7%) 903 (45.7%)
Occupation
 Teacher/civil servant/medical worker 3 (0.2%) 2 (0.1%) 2 (0.1%) 5 (0.3%) 12 (0.6%) 46 (2.3%) 58 (2.9%)
 Farmer 27 (1.4%) 12 (0.6%) 2 (0.1%) 20 (1.0%) 61 (3.1%) 43 (2.2%) 104 (5.3%)
 Student 31 (1.6%) 13 (0.7%) 16 (0.8%) 17 (0.9%) 77 (3.9%) 119 (6.0%) 196 (9.9%)
 Worker 60 (3.0%) 30 (1.5%) 36 (1.8%) 51 (2.6%) 177 (9.0%) 155 (7.8%) 332 (16.8%)
 Company employee 48 (2.4%) 20 (1.0%) 24 (1.2%) 37 (1.9%) 129 (6.5%) 133 (6.7%) 262 (16.8%)
 Others 140 (7.1%) 85 (4.3%) 36 (1.8%) 211 (10.7%) 472 (23.9%) 552 (27.9%) 1024 (51.8%)
Education
 Masters/Bachelor degree 54 (2.7%) 29 (1.5%) 21 (1.1%) 48 (2.4%) 152 (7.7%) 270 (13.7%) 422 (21.4%)
 Associate degree 51 (2.6%) 27 (1.4%) 41 (2.1% ) 47 (2.4%) 166 (8.4%) 196 (9.9%) 362 (18.3%)
 Secondary school or below 204 (10.3%) 106 (5.4%) 54 (2.7%) 246 (12.4%) 610 (30.9%) 582 (29.5%) 1192 (60.3%)
  1. *:%=n/(928+1048)*100%