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Table 5 ISR difference scores (based on effect sizes [ES]a) of patients with a positive clinical diagnosis (depression, anxiety, obsessive-compulsive, somatoform and/or eating disorders) matched to according self-report ISR scores; total sample (n = 342) and comparison of patients with one year of treatment (n = 271) versus those with two years of treatment (n = 71)

From: Course of self-reported symptoms of 342 outpatients receiving medium- versus long-term psychodynamic psychotherapy

ISR scale

Total sample

Treatment over 1 year

Treatment over 2 years

ES after completion of treatment

ES after completion of treatment

ES before completion of treatment

ES after completion of treatment

ES (Tmax-T0)b

ES (T1-T0)

ES (T1-T0)c

ES (T2-T0)d

ES (95 % CI)

ES (95 % CI)

ES (95 % CI)

ES (95 % CI)

Depressive symptoms

Positive clinical diagnosis of depressive disorder

n = 208

0.58 (0.44,0.71)

n = 159

0.56 (0.41,0.72)

n = 49

0.37 (0.09,0.65)

n = 49

0.61 (0.33,0.90)

Anxiety symptoms

Positive clinical diagnosis of anxiety disorder

n = 128

0.45 (0.29,0.62)

n = 100

0.44 (0.26,0.63)

n = 28

0.44 (0.12,0.76)

n = 28

0.49 (0.11,0.87)

Obsessive-compulsive disorder symptoms

Positive clinical diagnosis of obsessive-compulsive disorder

n = 43

0.54 (0.31,0.77)

n = 30

0.57 (0.30,0.84)

n = 13

0.23 (–0.24,0.71)

n = 13

0.47 (–0.05,0.99)

Somatoform symptoms

Positive clinical diagnosis of somatoform disorder

  

n = 94

0.31 (0.15,0.48)

n = 67

0.39 (0.18,0.60)*

n = 27

0.04 (–0.16,0.23)*

n = 27

0.13 (–0.10,0.37)

Eating disorder symptoms

Positive clinical diagnosis of eating disorder

n = 68

0.29 (0.07,0.52)

n = 51

0.35 (0.10,0.60)*

n = 17

–0.21 (–0.58,0.16)*

n = 17

0.13 (–0.41,0.67)

  1. aEffect sizes (ES) interpreted as small (ES ~ 0.2), medium (ES ~ 0.5) or large (ES ~ 0.8) effects (Cohen, [27])
  2. bES based on Tmax (maximum), i.e. ES are based on the latest follow-up ISR data available, i.e. T1 (n = 271) and T2 (n = 71), respectively
  3. cES based on (T1-T0), i.e. this group’s first follow-up score
  4. dES based on (T2-T0), i.e. this group’s final follow-up score
  5. *Significant differences at p < .05 level (robust ANOVA, Brown-Forsythe for the comparison of patients with one year of treatment [n = 271] versus those with two years of treatment [n = 71], with the latter group having two follow-up scores, i.e. at T1 and at T2); patients with a positive diagnosis of respective symptom only