Meta-analysis results for all treatments

Treatment relative effect with 95% CI; and degree of certainty (adaptated from GRADE). method

Treament Trials      
Demonstrated or suggested benefit Inconclusive results Uncertain results Safety results
proton pump inhibitors (PPI)3noneinconclusive results for: death or transfer to ICU; deaths; death or ventilation--
bismuth0- - - -
H2 blockers0- - - -