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Table 1 Risk of bias

From: Antiretroviral therapy and liver disease progression in HIV and hepatitis C co-infected patients: a systematic review and meta-analysis

  Selection bias Confounding bias Outcome measurement bias
Bruno (2007) [34] Low Moderate Low
Giron-Gonzalez (2007) [29] Unclear Moderate Low
Limketkai (2012) [23] Low Low Low
Macias (2006) [25] Low Moderate Low
Macias (2009) [24] Low Low Unclear
Mariné-Barjoan (2004) [35] Low High Low
Mehta (2005) [30] Unclear High High
Merchante (2006) [31] Unclear High Low
Pineda (2009) [32] Low Moderate Low
Qurishi (2003) [26] Unclear Low Low
Ragni (2009) [27] Low Low Unclear
Reiberger (2010) [36] Low High Low
Sanmartin (2014) [33] Low High High
Schiavini (2006) [28] Unclear High Low
Total risk of bias 9 low 4 low 10 low
0 high 6 high 2 high
5 unclear 4 moderate 2 unclear