Denys 2012

Methods	DESIGN: Randomised cross‐over trial BLINDING PROCEDURES: Not stated SAMPLE CALCULATION: No DURATION: 30 days WITHDRAWALS/DROPOUTS: 9 ITT: Not applicable GEOGRAPHICAL LOCATION: France SETTING: "11 French centres"
Participants	N = 106 DIAGNOSIS: Spinal cord injury ELIGIBLE: 106 ENROLLED: 106 COMPLETED: 97 AGE: 18 to 65 years GENDER: Male (63) and female (34)
Interventions	Novel "no‐touch" hydrophilic catheter versus participants' own hydrophilic catheter
Outcomes	Participant preferences
Notes	Reported on day 0 and then either day 15 or day 30 after use of test catheter
Risk of bias
Bias	Authors' judgement	Support for judgement
Random sequence generation (selection bias)	Unclear risk	"Randomisation was stratified per center"
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	Missing outcome data balanced in numbers between intervention group (n = 4) and control group (n = 5), with similar reasons for dropout across groups.
Source of Funding	Unclear risk	Hollister France Inc.