Prieto‐Fingerhut 1999

Methods	DESIGN: Randomised controlled trial BLINDING PROCEDURES: Not stated SAMPLE CALCULATION: No DURATION: Unclear FOLLOW‐UP: Unclear WITHDRAWALS/DROPOUTS: Not stated ITT: Not applicable GEOGRAPHICAL LOCATION: USA SETTING: Rehabiltiation
Participants	N = 29 DIAGNOSIS: Neurogenic bladder due to spinal cord injury ELIGIBLE: Unknown ENROLLED: 29 COMPLETED: Not stated AGE: Adults GENDER: 16 male, 13 female
Interventions	Single‐use uncoated, pre‐lubricated catheter with an integrated bag (sterile) versus multiple‐use uncoated, non‐lubricated catheter (CLEAN)
Outcomes	UTI Urine for C&S collected weekly ‐ unclear on trial time frame or endpoint.
Notes	UTI as defined by NIDRR (1992); higher % of UTI in closed system (42% vs 29%)
Risk of bias
Bias	Authors' judgement	Support for judgement
Random sequence generation (selection bias)	Unclear risk	Not stated
Allocation concealment (selection bias)	Unclear risk	Not stated
Blinding of participants and personnel (performance bias) All outcomes	Low risk	No blinding, but the review authors judge that the outcome and outcome measurement are not likely to be influenced by lack of blinding.
Blinding of outcome assessment (detection bias) All outcomes	Unclear risk	Not stated
Incomplete outcome data (attrition bias) All outcomes	Low risk	Not stated, but does not appear to be any missing outcome data
Source of Funding	Unclear risk	Medical Marketing Group Inc. US