Demirel 2013.

Methods	This is a randomized‐prospective study, to evaluate the efficacy of NIMV in reducing the duration of respiratory distress compared with NCPAP in transient TTN.
Participants	40 infants with a gestational age ≥ 37 weeks and birth weight ≥ 2000 g with TTN
Interventions	Patients were randomized to NIMV or NCPAP
Outcomes	The primary end point was the duration of respiratory distress. Secondary end points were the duration and level of oxygen supplementation, the incidence of complications such as pneumothorax, pneumonia and respiratory failure requiring intubation.
Notes
Risk of bias
Bias	Authors' judgement	Support for judgement
Random sequence generation (selection bias)	Low risk	Randomization was performed by using sequential numbers generated at the computer center of the NICU.
Allocation concealment (selection bias)	Low risk	The allocations were contained in opaque, sequentially numbered sealed envelopes.
Blinding of participants and personnel (performance bias) All outcomes	High risk	The assigned intervention could not be blinded to the team.
Blinding of outcome assessment (detection bias) All outcomes	Unclear risk	No information provided.
Incomplete outcome data (attrition bias) All outcomes	Low risk	All outcomes accounted for.
Selective reporting (reporting bias)	Low risk	The protocol was registered in ClinicalTrials.gov (NCT01499238).
Other bias	Low risk	Appears free of other bias.