Table 1.
Demographic distribution among blood donors by HIV infection status
| Demographic Category | HIV positive, n =77 (%) | HIV negative, n=649 (%) | p-value |
|---|---|---|---|
| Age (years)† | 0.02 | ||
| ≤ 25 | 21 (28.4) | 201 (31.8) | |
| 26 – 35 | 31 (41.9) | 170 (26.9) | |
| > 35 | 22 (29.7) | 262 (41.4) | |
| Education † | <0.0001 | ||
| < high school | 29 (38.2) | 98 (15.5) | |
| High school | 21 (27.6) | 180 (28.5) | |
| Some college and above | 26 (34.2) | 354 (56.0) | |
| Gender | 0.003 | ||
| Male | 63 (81.8) | 412 (64.9) | |
| Female | 14 (18.2) | 223 (35.1) | |
| Ethnicity | 0.03 | ||
| Han | 66 (85.7) | 591 (92.9) | |
| Other | 11 (14.3) | 45 (7.1) | |
| Marital status | 0.0003 | ||
| Married | 33 (42.9) | 361 (56.9) | |
| Never married | 33 (42.9) | 247 (39.0) | |
| Divorced/separated/widowed | 11 (14.3) | 26 (4.1) | |
| Donation center‡ | <0.0001 | ||
| Kunming | 38 (49.4) | 165 (25.4) | |
| Urumqi | 8 (10.4) | 116 (17.9) | |
| Luoyang | 7 (9.1) | 174 (26.8) | |
| Mianyang | 24 (31.2) | 194 (29.9) |
†
Missing data result in totals less than 77 for HIV positive or 649 for HIV negative group.
‡
The differences between the number of HIV positive and negative donors by center were a consequence of the lack of matching between the two groupsat center level.