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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         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         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         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