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Table 2 Summary risk of bias for each trial

From: A systematic review and meta-analysis in the effectiveness of mobile phone interventions used to improve adherence to antiretroviral therapy in HIV infection

Trial Randomisation Allocation concealment Blinding – primary outcomes Blinding – secondary outcomes Incomplete outcome Selective outcome reporting Contamination Other – general bias
Abdulrahman 2017 Low Low Low High Low Low Unclear Unclear
Belzer 2014 Low Unclear Low High High Low Unclear High
Da Costa 2012 Low Unclear Low High High Low Unclear Unclear
Haberer 2016 Low Unclear Low Low Low Low Unclear Unclear
Hardy 2011 Low Unclear Low Low High Low Unclear Unclear
Huang 2013 Low Low Low High High Unclear Unclear Unclear
Ingersoll 2015 Low Low Low Low Low Low Unclear Low
Kalichman 2011 Low Unclear Low Unclear Low Low Unclear Unclear
Kebaya 2014 Unclear Unclear Unclear Unclear Unclear Unclear Unclear Unclear
Lester 2010 Low Low Low High High Low High Unclear
Maduka 2013 Low Low Low High Low Low Low Unclear
Mbuagbaw 2012 Low Low Low High High Low Unclear Unclear
Nsagha 2016 Low Unclear Unclear High Unclear Low Unclear Unclear
Orrell 2015 Low Low Low Low Low High Unclear Unclear
Perera 2014 Unclear Unclear Low High Low Unclear Unclear Unclear
Pop-Eleches 2011 Low Unclear Low Low Low Unclear Unclear Unclear
Sabin 2015 Low Low Low Low Low Low Unclear Unclear
Shet 2014 Low Low Low Low Low Low Low Unclear
Uzma 2011 Low Unclear Low High High High Unclear Unclear