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Table 1 Summary of study characteristics for the seven included studies

From: Is group cognitive behaviour therapy for postnatal depression evidence-based practice? A systematic review

First author, date (country) N Design Intervention Concurrent therapy Comparator Number/duration of sessions Measure/ timescale Summary of main outcomes
Rojas 2007 (Chile) I: 114 RCT Multi-Component Intervention including psychoeducational group and structured pharmacology if needed Yes Usual Care 8 x 50 minute weekly sessions EPDS Greater improvement in EPDS over three months in the intervention group, with differences between groups remaining at six months, although decreased
C: 116
Milgrom 2005 (Australia) I: 46 RCT Group-based Cognitive-Behavioural Therapy. Including psychoeducation, role-playing and discussion N/R C1: Group-based counselling 9 x 90 minute weekly sessions BDI Significantly greater reduction in depression scores after all interventions compared to routine primary care
C1: 47 C2: Individual Counselling
C2: 66 C3: Routine Primary Care
C3: 33
Honey 2002 (UK) I: 23 RCT Controlled Psychoeducational Group (PEG). Educational information on post-natal depression, strategies for coping, cognitive-behavioural techniques N/R Routine Primary Care 8 x 2 hour weekly sessions EPDS Significantly greater reduction in depressive symptoms in intervention group compared to routine primary care
C: 22
Highet 2004 (Australia) I: 136 Non RCT Eight different, not mutually exclusive, treatment groups Yes Waiting List N/R EPDS Significant decrease in depression for those in intervention groups compared to those in the waiting list group
C: 10
Clark 2003 (US) I: 13 Non RCT Mother-Infant Therapy Group. Based on interpersonal, psychodynamic, family systems and cognitive-behavioural approaches N/R C1: Individual Interpersonal Therapy 12 x 90 minute weekly sessions BDI No significant difference in reduction of depressive symptoms for intervention group on BDI. No superiority of group therapy over individual therapy but both show greater improvement than control on CES-D
CES-D
C1: 15 C2: Waiting List
C2: 11
Clark 2008 (US) I: 18 Non RCT Mother-Infant Therapy Group. Interpersonal, psychodynamic, family systems, and cognitive behavioural approaches N/R Waiting List 12 x 120 minute weekly sessions BDI Significantly greater improvement in depressive symptoms for intervention group compared to waiting list group
C: 14
Meager 1996 (Australia) I: 10 Non RCT Group Treatment. Social and emotional support, education component, cognitive-behavioural component, networking and communication Yes Waiting List 10 x 90 minute weekly sessions BDI Significant improvement in depression in intervention group compared to waiting list group
EPDS
C: 10
  1. Abbreviations: RCT Randomised Controlled Trial, NR Not reported, BDI Beck Depression Inventory, EPDS Edinburgh Postnatal Depression Scale, I Intervention, C Comparator.