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Table 2 Assessment of the risk of bias of each included trials

From: Stress ulcer prophylaxis with proton pump inhibitors or histamine 2 receptor antagonists in critically ill adults - a meta-analysis of randomized controlled trials with trial sequential analysis

First author /Publication yearAdequate Sequence
Generation
AllocationConcealmentBlinding of participants and personnelBlinding of outcome assessmentIncomplete
Outcome Data
Selective
reporting
Other BiasOverall risk of bias
Alhazzani/2017LLLLLLLL
Apte/1992unclearunclearHunclearLLHH
Basso/1981LunclearHLHHunclearH
Ben-Menachem/1994LLHLHLLH
van den Berg /1985unclearunclearLLLHLH
Burgess/1995LunclearLLHLunclearH
Calvet/1998unclearLLLLHLH
Darlong/2003unclearunclearHunclearHHLH
El-Kersh/2018LLLLLLLL
Friedman/1982unclearunclearLLLHHH
Groll/1986unclearunclearLLLLHH
Gursoy/2008LunclearLLLLLH
Halloran/1980LunclearLLLLHH
Hanisch/1998LLLLLLLL
Kantorova/2004LLunclearLLLunclearH
Karlstadt/1990unclearunclearLLLLunclearH
Krag/2018LLLLLLLL
Lin/2016unclearunclearunclearunclearLLLH
Liu/2013LunclearunclearunclearLLunclearH
Macdougall/1977unclearunclearHHLLunclearH
Martin/1993unclearunclearLLLLHH
Metz/1993LLLLLHHH
Nourian/2018LunclearunclearunclearLLLH
Peura/1985unclearunclearLLLLLH
Powell/1993HHHunclearLLLH
Reusser/1990unclearunclearHunclearLLLH
Ruiz-Santana/1991unclearunclearHHHLLH
Selvanderan/2016LunclearLLLLLH
Zinner/1981LHHunclearHunclearLH
  1. L low, H high