Table 1 Seroprevalence for HGV in blood donors associated to risk factors detected by EIA/ELISA
From: Prevalence of hepatitis G virus infection among 67,348 blood donors in mainland China
Factors | Categories | No. of studies | No. of blood donors | No. of positivity | Prevalence [95%CI](%) | Heterogeneity | Between-group differences | ||
|---|---|---|---|---|---|---|---|---|---|
I 2 | P-value | Q | P-value | ||||||
Region | Â | Â | Â | Â | Â | Â | Â | 26.81 | 0.0002 |
|  | Northeast | 7 | 2150 | 60 | 2.69[1.55;4.11] | 66% | P < 0.01 |  |  |
|  | East China | 32 | 22,286 | 544 | 2.83[2.01;3.76] | 92% | P < 0.01 |  |  |
|  | South China | 12 | 10,800 | 315 | 3.84[1.39;7.30] | 97% | P < 0.01 |  |  |
|  | Northwest | 13 | 11,803 | 637 | 5.68[4.80;6.63] | 62% | P < 0.01 |  |  |
|  | Central China | 9 | 3958 | 149 | 5.37[3.11;8.16] | 88% | P < 0.01 |  |  |
|  | Southwest | 6 | 3133 | 92 | 3.21[1.78;5.00] | 80% | P < 0.01 |  |  |
|  | North China | 12 | 6919 | 270 | 5.08[2.73;8.08] | 95% | P < 0.01 |  |  |
Sample type | Â | Â | Â | Â | Â | Â | Â | 0.34 | 0.56 |
|  | Full blood | 70 | 46,022 | 1376 | 3.81[3.06;4.63] | 94% | P < 0.01 |  |  |
|  | Plasma | 8 | 15,027 | 691 | 4.80[2.30;8.10] | 97% | P < 0.01 |  |  |
Type of donation | Â | Â | Â | Â | Â | Â | Â | 3.38 | 0.066 |
|  | Voluntary | 59 | 36,232 | 1033 | 3.03[2.20;3.97] | 95% | P < 0.01 |  |  |
|  | Paid | 32 | 24,817 | 1034 | 4.46[3.47;5.56] | 90% | P < 0.01 |  |  |
Sex | Â | Â | Â | Â | Â | Â | Â | 0.43 | 0.51 |
|  | Male | 10 | 14,031 | 469 | 3.06[1.22;5.63] | 98% | P < 0.01 |  |  |
|  | Female | 10 | 10,310 | 390 | 4.10[2.01;6.85] | 96% | P < 0.01 |  |  |
Age | Â | Â | Â | Â | Â | Â | Â | 3.48 | 0.32 |
|  | 21–30 | 3 | 530 | 15 | 2.13[0.88;3.76] | 0 | P = 0.60 |  |  |
|  | 31–40 | 3 | 597 | 15 | 2.10[0.88;3.70] | 10% | P = 0.33 |  |  |
|  | 41–50 | 3 | 434 | 19 | 4.03[1.44;7.60] | 42% | P = 0.18 |  |  |
|  | 51- | 1 | 10 | 1 | 10.0[0.0;38.09] | 0 | – |  |  |