Table 2 Seroprevalence for HGV in blood donors associated to risk factors detected by PCR
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 | 23.50 | 0.0006 |
|  | East China | 22 | 10,070 | 205 | 2.97[1.50;4.85] | 95% | P < 0.01 |  |  |
|  | South China | 10 | 9071 | 226 | 3.40[0.55;8.17] | 98% | P < 0.01 |  |  |
|  | Central China | 9 | 2164 | 53 | 2.60[0.92;4.95] | 84% | P < 0.01 |  |  |
|  | North China | 18 | 7436 | 210 | 4.08[2.26;6.34] | 93% | P < 0.01 |  |  |
|  | Northeast | 4 | 1545 | 24 | 1.49[0.90;2.22] | 8% | P = 0.35 |  |  |
|  | Southwest | 1 | 119 | 2 | 1.68[0.03;5.00] | – | – |  |  |
|  | Northwest | 8 | 11,204 | 418 | 3.78[3.20;4.41] | 49% | P = 0.06 |  |  |
Sample type | Â | Â | Â | Â | Â | Â | Â | 0.20 | 0.65 |
|  | Full blood | 51 | 24,986 | 697 | 3.35[2.31;4.56] | 95% | P < 0.01 |  |  |
|  | Plasma | 8 | 14,182 | 442 | 2.94[1.06;5.63] | 97% | P < 0.01 |  |  |
Type of donation | Â | Â | Â | Â | Â | Â | Â | 7.09 | 0.008 |
|  | Voluntary | 40 | 18,666 | 472 | 2.26[1.24;3.53] | 95% | P < 0.01 |  |  |
|  | Paid | 28 | 20,502 | 667 | 4.62[3.34;6.07] | 92% | P < 0.01 |  |  |