Table 1 Characteristics of study participants used for prediction

  Female^*

  Male^*

 Age, mean (SD)^*

  Married^*

  Have children^*

  Primary school^*

  Secondary school^*

  University degree^*

  Doctorate

  Working^*

  Student^*

  Unemployed^*

  Disability pension

  Retired

 Years with BDD, mean (SD)^*

  Good^*

  Poor^*

  Delusional^*

 No. body areas of concern, mean (SD)

  Current depressive episode^*

  Panic disorder

  Social anxiety disorder^*

  Obsessive-compulsive disorder^*

  Generalized anxiety disorder^*

  Bulimia nervosa

  ADHD

  SSRI^*

  SNRI

  Other antidepressant^*

  Cognitive behavioral therapy for BDD^*

  Other psychological treatment^*

  Previous contact with psychiatry^*

  Plastic surgery^*

  No. of plastic surgeries, mean (SD)^*

  2 - Borderline mentally ill

  3 - Mildly ill^*

  4 - Moderately ill^*

  5 - Markedly ill^*

  6 - Severely ill

  7 - Among the most extremely ill patients

GAF, mean (SD)^*

BDD-YBOCS, mean (SD)^*

EQ-5D, mean (SD)^*

MADRS-S, mean (SD)^*

 Treatment credibility, mean (SD)^*

 Working alliance inventory, mean (SD)^*

 No. modules completed, mean (SD)^*

  1 h^*

  2 h^*

  3 h^*

  4 h^*

  5 h^*

  6 h^*

  7 h

  8 h

  9 h or more^*

 Post treatment

 3-month follow-up

 12-month follow-up

 24-month follow-up