Table 1.
Rates of HIV seroconversion and transmission among HIV serodiscordant couples: univariate analysis
| Characteristic | Spouses | Transmission | Rate (%) | χ2 | P value |
|---|---|---|---|---|---|
| Gender | |||||
| Male | 167 | 36 | 21.56 | 0.545 | 0.460 |
| Female | 64 | 11 | 17.19 | ||
| Education level | |||||
| Primary school and below | 69 | 11 | 15.94 | 1.765 | 0.623 |
| Middle school | 119 | 26 | 21.85 | ||
| High school | 26 | 7 | 26.92 | ||
| College degree and above | 17 | 3 | 17.65 | ||
| Route of infection | |||||
| Paid blood donors (slurry) | 16 | 3 | 18.75 | 5.920a | 0.205 |
| Transfusion | 37 | 7 | 18.92 | ||
| Heterosexual transmission | 126 | 29 | 23.02 | ||
| Homosexual | 51 | 7 | 13.73 | ||
| Intravenous drug | 1 | 1 | 100.00 | ||
| CD4 counts at first visit (cells/μl) | |||||
| Not detecteda | 20 | 8 | 40.00 | 4.563 | 0.207 |
| <150 | 85 | 16 | 18.82 | ||
| 150+ | 58 | 10 | 17.24 | ||
| 300+ | 68 | 13 | 19.12 | ||
| CD4 counts at the end (cells/μl) | |||||
| Not detecteda | 24 | 10 | 41.67 | 9.050 | 0.029 |
| <150 | 41 | 11 | 27.50 | ||
| 150+ | 48 | 8 | 16.67 | ||
| 300+ | 118 | 18 | 15.25 | ||
| PVL at first visit (copies/ml) | |||||
| Not detecteda | 109 | 35 | 32.11 | 17.714 | 0.000 |
| <300 | 97 | 9 | 9.28 | ||
| ⩾300 | 25 | 3 | 12.00 | ||
| PVL at the end (copies/ml) | |||||
| Not detecteda | 92 | 29 | 31.52 | 12.944 | 0.002 |
| <300 | 121 | 14 | 11.57 | ||
| ⩾300 | 18 | 4 | 22.22 | ||
| Age confirmedb | |||||
| ⩽25 | 22 | 1 | 4.55 | 7.947 | 0.047 |
| 25+ | 66 | 16 | 24.24 | ||
| 35+ | 81 | 13 | 16.05 | ||
| 45–70 | 62 | 17 | 29.42 | ||
| Age infectedc | |||||
| ⩽25 | 50 | 8 | 16.00 | 3.938 | 0.268 |
| 25+ | 79 | 16 | 20.25 | ||
| 35+ | 72 | 13 | 18.06 | ||
| 45–70 | 30 | 10 | 33.33 | ||
| Age of first sexual contact | |||||
| ⩽25 | 44 | 7 | 15.91 | 3.689 | 0.297 |
| 25+ | 81 | 17 | 20.99 | ||
| 35+ | 75 | 13 | 17.33 | ||
| 45–70 | 31 | 10 | 32.26 | ||
| Sexual activity before diagnosis | |||||
| ⩾3 times/week | 35 | 8 | 22.86 | 8.719 | 0.033 |
| 1–2 times/week | 70 | 19 | 27.14 | ||
| Semi-monthly | 45 | 12 | 26.67 | ||
| Once a month | 81 | 8 | 9.88 | ||
| Condom use | |||||
| Never used | 169 | 38 | 22.49 | 5.108 | 0.164 |
| Sometimes used | 51 | 8 | 15.69 | ||
| Used frequently | 3 | 1 | 33.33 | ||
| Used every time | 8 | 0 | 0.00 | ||
| Period in time | |||||
| 2006 and before | 24 | 8 | 33.33 | 4.351 | 0.114 |
| 2007+ | 42 | 5 | 11.90 | ||
| 2011+ | 165 | 34 | 20.61 |
a
Before 2010, there was no HIV confirmation laboratory, CD4 count and PVL test laboratory in Lu 'an. All the blood samples with HIV-positive screening need to be sent to the province HIV confirmation laboratory for confirmation experiment. HIV-positive patients were further tested for CD4 count and PVL. Many patients were tested for HIV at an advanced stage of AIDS and died before positive results were reported, failing to detect CD4 count and PVL further. The same below.
b
Age at which HIV positive was first detected. The same below.
c
Age at the time of HIV infection. The same below.