Hua 2003.

Methods	Prospective, randomised single centre study
Participants	72 patients (36 tamsulosin, 36 no treatment)
Interventions	A (36): Tamsulosin 0.4 mg once daily for three days B (36): No treatment, TWOC after 3 days (both groups given prophylactic antibiotics)
Outcomes	TWOC success rates:A 22/36 , B 10/36
Notes	Full text article in Chinese with English abstract. TWOC success rates stated in English abstract but no other usable data available for any of the specified outcomes.
Risk of bias
Bias	Authors' judgement	Support for judgement
Random sequence generation (selection bias)	Unclear risk	'...were randomly divided into treatment group and control group of 36 patients each.'
Allocation concealment (selection bias)	Unclear risk	Not specified
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	Unclear risk	Not specified
Blinding of outcome assessment (detection bias) All outcomes	Unclear risk	Not specified
Other bias	Unclear risk	Other aspects of trial design such as baseline comparability, sample size calculation and financial support not specified.