Jani 1989.

Methods	Treatment allocation: Women randomly assigned to receive spinal or epidural anaesthesia. No other details of methodology given. Allocation concealment: No details given. Documentation of exclusions: No exclusions. Blinding of outcome assessment: Not mentioned. Losses to follow up: None.
Participants	Inclusion criteria: 41 healthy women with uncomplicated pregnancies scheduled to undergo elective caesarean section under regional anaesthesia. Exclusion criteria: None mentioned. Number lost to follow up: None.
Interventions	Spinal anaesthesia: 0.5% plain bupivacaine (median dose 0.14 mg/kg). Epidural anaesthesia: Incremental doses of plain 0.5% bupivacaine (median dose 1.7 mg/kg).
Outcomes	Incidence of hypotension (systolic blood pressure < 100 mmHg) and ephedrine requirement was recorded but not number of women treated. Neonates were assessed but no interventions were mentioned.
Notes	UK. Study in abstract form only.
Risk of bias
Bias	Authors' judgement	Support for judgement
Allocation concealment (selection bias)	Unclear risk	B ‐ Unclear