| Database | Time span | Search strategy |
| Central Register of Controlled Trials (CENTRAL) in the Cochrane Library | Issue 11, 2018 | #1 MeSH descriptor: [Antibiotic Prophylaxis] explode all trees #2 antibiotic* #3 antibacteri* near prophyl* #4 #1 or #2 or #3 #5 MeSH descriptor: [Liver Cirrhosis] explode all trees #6 ((hepatic or liver) and (fibrosis or cirrhosis or cirrhotic)) #7 #5 or #6 #8 #4 and #7 |
| MEDLINE Ovid | January 1947 to November 2018 | 1. exp antibiotic prophylaxis/ 2. antibiotic*.ti,ab. 3. (antibacteri* adj prophyl*).ti,ab. 4. 1 or 2 or 3 5. exp Liver Cirrhosis/ 6. ((hepatic or liver) and (fibrosis or cirrhosis or cirrhotic)).ti,ab. 7. 5 or 6 8. 4 and 7 9. randomized controlled trial.pt. 10. controlled clinical trial.pt. 11. randomized.ab. 12. placebo.ab. 13. drug therapy.fs. 14. randomly.ab. 15. trial.ab. 16. groups.ab. 17. 9 or 10 or 11 or 12 or 13 or 14 or 15 or 16 18. exp animals/ not humans.sh. 19. 17 not 18 20. 8 and 19 |
| Embase Ovid | January 1974 to November 2018 | 1. exp antibiotic prophylaxis/ 2. antibiotic*.ti,ab. 3. (antibacteri* adj prophyl*).ti,ab. 4. 1 or 2 or 3 5. exp liver cirrhosis/ 6. ((hepatic or liver) and (fibrosis or cirrhosis or cirrhotic)).ti,ab. 7. 5 or 6 8. 4 and 7 9. exp crossover‐procedure/ or exp double‐blind procedure/ or exp randomized controlled trial/ or single‐blind procedure/ 10. (((((random* or factorial* or crossover* or cross over* or cross‐over* or placebo* or double*) adj blind*) or single*) adj blind*) or assign* or allocat* or volunteer*).af. 11. 9 or 10 12. 8 and 11 |
| Science Citation Index Expanded (Web of Science) | January 1945 to November 2018 | #1 TS=(antibiotic*)
#2 TS=(antibacteri* near prophyl*)
#3 #2 OR #1
#4 TS=((hepatic or liver) and (fibrosis or cirrhosis or cirrhotic)) #5 TS=(random* OR rct* OR crossover OR masked OR blind* OR placebo* OR meta‐analysis OR systematic review* OR meta‐analys*) #6 #3 AND #4 AND #5 |
| World Health Organization International Clinical Trials Registry Platform (apps.who.int/trialsearch/Default.aspx) | November 2018 | Condition: cirrhosis; intervention: antibiotic* |
| ClinicalTrials.gov | November 2018 | antibiotic | Interventional Studies | Cirrhosis | Phase 2, 3, 4 |
| European Medical Agency (www.ema.europa.eu/ema/) and US Food and Drug Administration (www.fda.gov) | November 2018 | spontaneous bacterial peritonitis |