Heiselman 1995.

Methods	RCT
Participants	Number of participants randomised: 105; 46 in the control group and 59 in the metoclopramide group Inclusion criteria: admission to the critical care unit; need for enteral nutrition Did not state whether diabetic patients were included or not
Interventions	59 participants received metoclopramide 10 mg intravenously 10 minutes prior to the insertion of the naso‐enteral tube 46 control participants received no medication prior to the insertion of the naso‐enteral tube
Outcomes	Success rate of post‐pyloric tube placement evaluated by auscultation of the right upper abdominal quadrant and abdominal radiography taken 45 minutes after tube advancement
Notes	Setting: Ohio, USA
Risk of bias
Bias	Authors' judgement	Support for judgement
Random sequence generation (selection bias)	Unclear risk	No details about randomisation provided
Allocation concealment (selection bias)	Unclear risk	Concealment of allocation sequence not described
Blinding (performance bias and detection bias) All outcomes	High risk	No blinding of participants, personnel or outcome assessors
Incomplete outcome data (attrition bias) All outcomes	Low risk	There were no withdrawals or dropouts
Selective reporting (reporting bias)	Unclear risk	All outcomes reported
Other bias	Low risk	Sample size calculation was reported