Psychosocial and educational interventions will be compared to no
intervention, placebo, pharmacological intervention, or another
psychosocial or educational intervention. Usual care is defined as
the care that might be provided to pregnant women if they were
not included in the clinical trial.
• Any psychosocial or educational intervention versus no
intervention (untreated control groups; usual care)
• Any psychosocial or educational intervention versus placebo
• Any psychosocial or educational intervention versus
pharmacological intervention
• Different types of psychosocial or educational interventions
against each other (e.g., interventions delivered at the labour
ward versus interventions delivered at home)