Terre 2015.

Methods	Computerised randomisation Double‐blinded study Outcome assessors blinded
Participants	Study completed in Spain 20 participants with neurological oropharyngeal dysphagia (14 stroke participants in the posterior circulation; 6 with traumatic brain injury) Baseline characteristics similar between groups All within 5 months of diagnosis Dysphagia identified by videofluoroscopy and Functional Oral Intake Scale
Interventions	Rx: active NMES with conventional therapy C: sham NMES with conventional therapy
Outcomes	Clinical, videofluoroscopic, and oesophageal manometric analyses of swallow; Functional Oral Intake Scale
Notes	Exclusion: previous stroke or traumatic brain injury, previous dysphagia secondary to any other etiology, other metabolic or neurological disease
Risk of bias
Bias	Authors' judgement	Support for judgement
Random sequence generation (selection bias)	Low risk	Computerised randomisation
Allocation concealment (selection bias)	Unclear risk	Unclear
Blinding (performance bias and detection bias) All outcomes	Low risk	Double‐blinded
Blinding of participants and personnel (performance bias) All outcomes	Low risk	Participants and assessors blinded
Blinding of outcome assessment (detection bias) All outcomes	Low risk	Assessors blinded
Incomplete outcome data (attrition bias) All outcomes	Unclear risk	Unclear
Selective reporting (reporting bias)	Low risk	All outcomes reported
Other bias	Low risk	None identified