Items | Number of studies | Odds ratio (95% CI) | I2 (%) | P |
---|---|---|---|---|
Injection of drugs | 8 | 3.54 (2.28–5.49) | 88.6 | 0.00 |
Tattooing | 6 | 2.59 (1.74–3.86) | 81.7 | 0.00 |
Having shared a syringe/needle | 4 | 4.06 (0.70–23.51) | 95.4 | 0.00 |
History of transfusion | 4 | 1.61 (0.91–2.86) | 55 | 0.00 |
Use of drugs | 3 | 1.16 (0.38–3.54) | 94.3 | 0.00 |