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Table 5 PROBAST risk of bias assessment for studies externally validating PDRI/P-PASS

From: Risk indices predicting graft use, graft and patient survival in solid pancreas transplantation: a systematic review

Study Risk of bias Applicability Overall
Participants Predictors Outcome Analysis Participants Predictors Outcome Risk of bias Applicability
Amaral PHF 2015 [36] + + ? + ?
Ayami M 2016 [37] + + + + + + +
Blok JJ 2016 [8] + + + + + + +
Franz C 2019 [38] + + + + ? + ?
Horvath S 2015 [39] + + + ? ?
Kopp W 2016 [40] + + + + + + + + +
Lan L 2010 [45] + + + + +
Mittal S 2013 [41] + + ? + + ? ?
Mittal S 2015 [42] + + + + + + +
Rodriguez-Villar C 2018 [34] + + + + + + +
Salamanca-Bustos JJ 2016 [9] + + + + + + +
Smigielska K 2018 [11] + + + + ? + ?
  1. PROBAST Prediction model Risk of Bias ASsesment Tool, ROB risk of bias
  2.  + indicates low ROB/low concern regarding applicability; − indicates high ROB/high concern regarding applicability;? indicates unclear ROB/unclear concern regarding applicability