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Table 2 Quality assessment

From: Comparison of peritoneal dialysis and hemodialysis as first renal replacement therapy in patients with end-stage renal disease and diabetes: a systematic review

Key Failure to develop and apply appropriate eligibility criteria (inclusion of control population) Flawed measurement of both exposure and outcome Failure to adequately control confounding factors Incomplete or inadequately short follow-up
Kim 2017 Low Low High Unclear
Shen 2016 Low Low High Unclear
Tamayo Isla 2016 Low Low High High
Nesrallah 2016 High Low High Unclear
Lee 2016 Low Low High Low
Marshall 2016 Low Low High Low
Wang 2016 Low Low High Unclear
Waldum-Grevbo 2015 Low Low High Low
Yang 2015 Low Low High Unclear
Kim 2015 Low High High Unclear
Marshall 2015 Low Low High Unclear
Ryu 2015 Low Low High Unclear
Marshall 2014 Low Low High Unclear
Kim 2014 Low Low High Unclear
Heaf 2014 Low Low High Unclear
Mircescu 2014 Low Low High Low