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Table 2 Pre-post measures and within-group effect sizes in the two treatment settings; n = 400 (BID) n = 193 (inpatients)

From: Effectiveness of inpatient versus outpatient complex treatment programs in depressive disorders: a quasi-experimental study under naturalistic conditions

 

Group

Time 1

M (SD)

Time 2

M (SD)

T-tests

Cohen’s d1

Severity of self-rated Depression (BDI)

BID

29.8 (9.5)

17.4 (10.5)

t (399) = 25.7; p < .001

−1.36

Inpatient

30.3 (11.2)

20.2 (12.0)

t (192) = 18.4; p < .001

−1.36

Severity of depression assessed by the therapist (MADRS)

BID

26.6 (6.4)

13.9 (7.5)

t (399) = 32.5; p < .001

−1.76

Inpatient

27.0 (6.3)

15.5 (4.7)

t (192) = 23.2; p < .001

− 1.49

Global Functioning (GAF)

BID

52.5 (8.6)

64.8 (11.5)

t (399) = −21.1; p < .001

1.25

Inpatient

43.9 (8.3)

58.8 (7.7)

t (192) = −20.9; p < .001

1.45

Global burden of psychopathology (SCL-90-R GSI)

BID

73.3 (8.0)

62.7 (12.0)

t (399) = 20.2; p < .001

−1.33

Inpatient

73.4 (8.4)

66.2 (11.1)

t (192) = 12.5; p < .001

− 1.10

  1. Legend: 1d ≥ 0.2 small effect, d ≥ 0.5 moderate effect, d ≥ 0.8 large effect (marked)