Aktogu 1994.

Methods	Parallel‐group single‐centre randomized controlled trial conducted in Turkey
Participants	32 adults undergoing bronchoscopy (mean age midazolam group 49.4 ± 13.3 and diazepam group 50.9 ± 12.1; 50% men in both groups)
Interventions	Midazolam 0.06 mg/kg administered intravenously Diazepam 0.15 mg/kg administered intravenously
Outcomes	Measured 5 and 10 minutes after start of procedure: Level of sedation on a sedation assessment scale (only the percentage of participants who scored in the 'awake' rank of a sedation scale that ranged from 0 to 4 (0 = awake and 4 = reactive to pain but no verbal communication) that was measured 5 minutes after sedation was administered) Measured 24 hours after procedure: Anterograde amnesia (defined by number of participants who recalled the procedure)
Notes	Conflicts of interest or funding sources were not reported.
Risk of bias
Bias	Authors' judgement	Support for judgement
Random sequence generation (selection bias)	Unclear risk	Unclear (no mention of randomization method, just a statement that participants were randomized)
Allocation concealment (selection bias)	Unclear risk	Unclear (no mention of allocation method, just a statement that participants were randomized)
Blinding of participants and personnel (performance bias) All outcomes	Unclear risk	Unclear (no mention)
Blinding of outcome assessment (detection bias) All outcomes	Unclear risk	Only statistical analysis of the questionnaires was reported to have been performed by a blinded statistician
Incomplete outcome data (attrition bias) All outcomes	Low risk	No withdrawals
Selective reporting (reporting bias)	Unclear risk	No clear evidence that measured outcomes were not reported (trial protocols were not sought for confirmation)
Other bias	Low risk	None expected