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Table 1 Characteristics of included trials

From: The effect of CBT and its modifications for relapse prevention in major depressive disorder: a systematic review and meta-analysis

Study ID

Pre randomization /eligibility

Patients

Interventions

Author

Year

Condition

Previous episodes

Criteria used to measure relapse

Previous pharmacology interventions

N

Agea

Male (N/%)

Previous episodesa

% on ADM at baseline

Mean age of first onseta

Groups (n/dropouts)

Form of intervention

N(Number of sessions, frequency, Mean duration + boost sessions)

Length of Follow-Up(months)

Bockting

2005

recurrent MDD, in remission for 10 weeks - 2 years

2 + recent episodes in the previous 5 years

SCID-I

NR

187

44.7/9.5

46/27

3.5/3.8

51

28.4/12.5

CBT:97/16

group

8,weekly,2 h

24

Control(TAU):90/6

  

Bondolfi

2010

recurrent MDD, in remission for 3 + months

3 + episodes (2 in the past 5 years and at least one in the past 2 years)

SCID

a history antidepressants treatment but off medication for 3 + months before enrolment.

60

47.5(24–66)

17/28

4(3–14)

30

24.5(8–55)

MBCT:31/4

group

8,weekly,2 h + 4 sessions each 3 months

14

Control(TAU):29/1

  

Fava

1994

primary MDD, in full remission

NR

RDC-defined MDE

successfully response to antidepressant drugs according to a standardized protocol

40

43.7/2.3

16/40

NR

100

NR

CBT:20/0

individual

10,every other week,40 min

24

Control(PLA):20/0

  

Fava

1998

MDD, in full remission for 10 week +

3 or 3 + episodes

RDC-defined MDE

successfully response to antidepressant drugs according to a standardized protocol.

40

46.1/3.7

13/32.5

3.6/0.8

100

NR

CBT:20/0

individual

10,every other week,30 min

24

Control(PLA):20/0

  

Godfrin

2010

MDD, in remission for 8 + weeks

3 or 3 + episodes

DSM-IV diagnosis of MDE

No special

106

45.7/10.5

20/19

NR

76.4

29.8/10.2

MBCT:52/18

group

8,weekly, 2.75 h + homework exercises (meditation practices) for 45 + min/d

14

Control(TAU):54/12

  

Hollandare

2013

MDD, in partial remission

1 + episodes in the previous 5 years

SCID

No special

84

45.3/12.8

13/15

5.96/9.1

50

NR

CBT:42/10

individual

16 internet modules + general e-mails for 10 weeks

24

Control(PLA)::42/7

  

Kuyken

2008

recurrent MDD, in full or partial remission

3 or 3 + episodes

SCID

on a continuing dose of m-ADM for 6 + months

123

49.2/11.2

29/24

6.4/3.0

100

26.2/12.1

MBCT-TS:61/9

group

8,weekly,2 h + 4 sessions

15

m-ADM:62/10

  

kuyken

2015

recurrent MDD, in full or partial remission

3 or 3 + episodes

SCID

on a continuing dose of m-ADM for 6 + months

424

49.5/12.5

99/23

46% 6 +

100

24.9/12.4

MBCT-TS:212/23

group

8,weekly, 2.25 h + 4 refresher sessions/3 months

24

m-ADM:212/18

  

Ma and Teasdale

2004

MDD, in remission for 12 + weeks

2 or 2 + episodes in the previous 5 years

modeled on the SCID

a history antidepressants treatment but off medication for 3 + months before enrolment.

75

44.5/9.0

18/24

3/2.0

100

30.6/12.4

MBCT:37/6

group

8,weekly, 2.75 h + homework exercises

13

Control(TAU):38/1

  

Paykel

1999

MDD, in remission for 2–18 months

residual symptoms

DSM-III-R criteria for MDD for at least 1 month AND Minimum symptom score

all on a history antidepressants treatment

158

43.4/10.5

80/51

37% 3 +

100

NR

CBT:80/19

individual

16 sessions over 20 weeks + 2 sessions 6 and 14 weeks later

15.8

Control(PLA):78/12

  

Segal

2010

MDD, in remission for 7+ months

3 + episodes

16 + on the HRSD-17 assessed twice then criteria for MDD measured with SCID

all on a history antidepressants treatment

54

44.1/11

31/37

4.7/2.3

55

31/11.6

MBCT:26/5

group

8,weekly,2 h + option 1 h/month mindfulness mediation class

18

m-ADM:28/7

  

Stangier

2013

MDD, in full remission

3 or 3 + episodes

DSM-IV diagnosis of MDE (LIFE)

NR

180

48.6/11.6

50/27.8

7.4/8.3

74.8

30.9/12.4

Maintenance CBT: 90/15

individual

16,NR,50 min

12

Manualized psychoeducation: 90/31

individual

16,NR,20 min

Teasdale

2000

MDD, in remission(0-24 months)

3 + episodes (2 in the past 5 years and at least one in the past 2 years)

SCID

a history antidepressants treatment but off medication for 3 + months before enrolment.

145

43.3/10.3

35/24

3.3/3.0

100

26.8/10.2

MBCT:76/13

group

8,weekly,2 h + 4 more sessions over trial duration

12

Control(TAU):69/0

  

Teismann

2014

MDD, in partial remission

NR

SCID

No special

60

47.1/11.8

17/28

22.45% 5 +

40

NR

CBT:31/2

group

11,weekly,90 min

12

WL:29/5

  

Wilkinson

2009

MDD, in remission for 2 + months

NR

MADRS score of 10 + at 6/12 months

Received antidepressant medication

45

74.0/7.3

17/38

3.0/1.9

100

NR

CBT:22/4

group

8,NR,90 min

12

Control(PLA):23/5

  

Williams

2014

MDD, in remission for 8+ weeks

3 or 3 + episodes

SCID

NR

164

43.4/12

76/28

77% 5 +

44

21.3/10.7

MBCT:108/9

group

individual pre class interview + 8,weekly,2 h + follow-up classes taking place 6 weeks and 6 months in the follow-up

12

Control(TAU):56/3

  
  1. Note:
  2. a Mean/SD, Median(range)
  3. CBT cognitive behavioral therapy, CPE cognitive psychological education, MBCT mindfulness-based cognitive therapy, MBCT-TS MBCT with support to taper or discontinue antidepressant treatment, TAU treatment as usual, m-ADM Maintenance antidepressant medication, WL wait-list, PLA (psychological or pill) placebo
  4. Criteria used to measure relapse:
  5. DSM Diagnostic Statistical Manual, LIFE Longitudinal Interval Follow-up Evaluation, MDD MDD Disorder, MDE MDD Episode, RDC Research Diagnostic Criteria, SCID Structured Clinical Interview for DSM Disorders, MADRS Montgomery–Asberg Depression Rating Scale, HRSD Hampton Roads Sanitation District