James 1973.

Study characteristics
Methods	RCT
Participants	79 women Inclusion criteria: normotensive women undergoing repeat or primary CS for cephalopelvic disproportion
Interventions	Lower limb compression versus control Group 1: plastic inflatable boots applied from toes to upper thighs and inflated immediately after spinal Group 2: control All women received a standardised crystalloid preload, a standardised spinal anaesthetic technique with dose adjusted according to subject's height and standardised surgical positioning.
Outcomes	Maternal: hypotension Neonatal: Apgar scores at 1 min and 5 min (expressed as mean score)
Notes	Hypotension was defined as SBP < 100 mmHg
Risk of bias
Bias	Authors' judgement	Support for judgement
Random sequence generation (selection bias)	Unclear risk	Method not described
Allocation concealment (selection bias)	Unclear risk	Method not described
Blinding of participants and personnel (performance bias) All outcomes	Unclear risk	Blinding: not mentioned
Blinding of outcome assessment (detection bias) All outcomes	Unclear risk	Blinding: not mentioned
Incomplete outcome data (attrition bias) All outcomes	Unclear risk	Losses to follow‐up: not stated
Selective reporting (reporting bias)	Unclear risk	Not apparent
Other bias	Unclear risk	Not apparent