Skip to main content

Table 1 Characteristics of study participants used for prediction

From: Predictors of remission from body dysmorphic disorder after internet-delivered cognitive behavior therapy: a machine learning approach

Variable No. (%)
Sociodemographic variables
Gender
  Female* 74 (84%)
  Male* 14 (16%)
 Age, mean (SD)* 32.48 (11.62)
Household structure
  Married* 14 (16%)
  Have children* 33 (38%)
Level of education
  Primary school* 11 (12%)
  Secondary school* 50 (57%)
  University degree* 26 (30%)
  Doctorate 1 (1%)
Occupational status
  Working* 49 (56%)
  Student* 22 (25%)
  Unemployed* 13 (15%)
  Disability pension 1 (1%)
  Retired 3 (3%)
Clinical variables
 Years with BDD, mean (SD)* 18.83 (13.27)
Insight
  Good* 46 (52%)
  Poor* 34 (39%)
  Delusional* 8 (9%)
 No. body areas of concern, mean (SD) 7.67 (4.68)
Comorbidity
  Current depressive episode* 44 (50%)
  Panic disorder 3 (3%)
  Social anxiety disorder* 25 (28%)
  Obsessive-compulsive disorder* 8 (9%)
  Generalized anxiety disorder* 15 (17%)
  Bulimia nervosa 9 (10%)
  ADHD 2 (2%)
Medication
  SSRI* 12 (14%)
  SNRI 2 (2%)
  Other antidepressant* 7 (8%)
Previous treatment
  Cognitive behavioral therapy for BDD* 10 (11%)
  Other psychological treatment* 53 (60%)
  Previous contact with psychiatry* 54 (61%)
  Plastic surgery* 21 (24%)
  No. of plastic surgeries, mean (SD)* 0.56 (1.30)
Baseline measurements
CGI-Severity
  2 - Borderline mentally ill 3 (3%)
  3 - Mildly ill* 13 (15%)
  4 - Moderately ill* 47 (53%)
  5 - Markedly ill* 21 (24%)
  6 - Severely ill 3 (3%)
  7 - Among the most extremely ill patients 1 (1%)
GAF, mean (SD)* 56.24 (6.67)
BDD-YBOCS, mean (SD)* 27.74 (5.52)
EQ-5D, mean (SD)* 13.06 (3.55)
MADRS-S, mean (SD)* 18.92 (9.05)
Treatment-related variables
 Treatment credibility, mean (SD)* 31.59 (11.51)
 Working alliance inventory, mean (SD)* 65.27 (13.15)
 No. modules completed, mean (SD)* 6.25 (2.45)
Time spent on treatment (per week)
  1 h* 16 (18%)
  2 h* 17 (19%)
  3 h* 15 (17%)
  4 h* 6 (7%)
  5 h* 6 (7%)
  6 h* 8 (9%)
  7 h 3 (3%)
  8 h 5 (6%)
  9 h or more* 12 (14%)
Outcome: Number of participants in remission
 Post treatment 27 (31%)
 3-month follow-up 37 (42%)
 12-month follow-up 41 (47%)
 24-month follow-up 53 (60%)
  1. Abbreviations: BDD Body dysmorphic disorder, ADHD Attention deficit hyperactivity disorder, SSRI Selective serotonin reuptake inhibitor; SNRI Serotonin-norepinephrine reuptake inhibitor, CGI Clinical global impression scale, GAF Global assessment of functioning, BDD-YBOCS Yale-Brown obsessive compulsive scale modified for BDD, EQ-5D EuroQol 5-dimensions, MADRS-S Montgomery-Åsberg depression rating scale-self report
  2. *Variable was used in prediction