Deng 2005.

Methods	Randomised controlled trial in China.
Participants	Inclusion criteria: newborns with upper gastrointestinal haemorrhage day 3 to 28 (n = 66). Exclusion criteria: none reported. Average age 7 to 8 days.
Interventions	Intervention (n = 33): omeprazole 1 mg/kg twice daily for 5 days and normal therapy. Control (n = 33): normal therapy. Both groups given vitamin K and nil by mouth.
Outcomes	Curative rate: no haematemesis or melena at 24 hours.
Notes	It is unclear if there were any adverse reactions attributable to the intervention.
Risk of bias
Bias	Authors' judgement	Support for judgement
Random sequence generation (selection bias)	Unclear risk	Reported: "randomly divided".
Allocation concealment (selection bias)	Unclear risk	Method not reported.
Blinding of participants and personnel (performance bias) All outcomes	Unclear risk	Not reported.
Blinding of outcome assessment (detection bias) All outcomes	Unclear risk	Not reported.
Incomplete outcome data (attrition bias) All outcomes	Low risk	No losses reported.
Selective reporting (reporting bias)	Unclear risk	No protocol available.
Other bias	Unclear risk	No baseline characteristics given although age at presentation and duration of bleeding similar between groups.