Lucas 2005.

Methods	Randomised, double‐blind, placebo‐controlled, parallel‐group, multicentre study
Participants	149 patients (75 tamsulosin, 74 placebo), mean age 69.4 years
Interventions	A (75): Tamsulosin 0.4mg once daily B (74): Placebo TWOC 'after up to 8 doses'
Outcomes	Number who had successful TWOC: A 34/75, B 18/74
Notes	Qmax, PVR volume and spontaneously voided volume analysed but not separately (in groups of 'any two successful criteria')
Risk of bias
Bias	Authors' judgement	Support for judgement
Random sequence generation (selection bias)	Unclear risk	'...randomized, double‐blind, placebo‐controlled, parallel‐group, multicentre study'
Allocation concealment (selection bias)	Unclear risk	Not specified ('...randomly assigned to receive...')
Incomplete outcome data (attrition bias) All outcomes	Low risk	No incomplete data
Selective reporting (reporting bias)	Unclear risk	All the outcomes as detailed in the method section of the trial were reported in the result section. Some outcomes which are considered important from patients’ perspective were not reported. Without the protocol it was difficult to judge whether or not these outcomes were included in the protocol and not reported in the report.
Blinding of participants and personnel (performance bias) All outcomes	Low risk	Double blinded
Blinding of outcome assessment (detection bias) All outcomes	Unclear risk	Not specified
Other bias	High risk	'This study was sponsored by a grant from Yamanouchi Pharma Ltd.'