Ahmed 1995.

Methods	Anaesthetic drugs used: thiopentone 4mgkg‐1, 33% O2 in N2O, enflurane 2‐3%. Premed‐induction interval 60
Participants	50
Interventions	Drug and dose: midazolam 7.5mg vs. placebo
Outcomes	Memory, letter deletion tests at 1 and 4 hours after emergence
Notes	1) Anxiety assessed by anaesthetist only 2) Difference from placebo ? On letter deletion test at 1 hour only
Risk of bias
Bias	Authors' judgement	Support for judgement
Adequate sequence generation?	Unclear risk	Method of randomization unknown
Allocation concealment?	Unclear risk	Unclear