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Table 2 Psychological outcome results by measure and follow-up time

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

  Intervention group Control group  
Author N Mean SD N Mean SD Comparison
BDI – 3 months        
Milgrom (2005) 31 14.48 8.8 18 18.78 8.5 RCT v usual care
Clark (2003) 9 15.9 8.5 11 20.6 9.2 non-RCT v waiting list
Clark (2008) 18 12.42 7.08 14 20.5 7.27 non-RCT v waiting list
Meager (1996) 6 16.8 10 6 29.14 10 non-RCT v waiting list
EPDS – 3 months        
Rojas (2007) 101 8.5 6.41 108 12.8 6.92 RCT v usual care
Honey (2002) 23 14.87 5.97 22 16.95 5.44 RCT v usual care
EPDS – 6 months        
Rojas (2007) 106 10.9 6.67 102 12.5 6.92 RCT v usual care
Honey (2002) 23 12.55 4.62 22 15.63 7.28 RCT v usual care
Meager (1996) 6 15.8 7.6 6 28 7.6 non-RCT v waiting list
  1. Abbreviations: BDI Beck Depression Inventory, EPDS Edinburgh Postnatal Depression Scale, RCT Randomised Controlled Trial.
  2. Footnote: The total range of EPDS scores is 0–30. Scores within the range 12–30 suggest clinically significant depression. The total range of BDI scores is 0–63. Scores within the 1–9 range indicate minimal depression, 10–18 mild depression, 19–29 moderate depression, and 30–63 severe depression.