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Table 1 Outcomes in the TECTO trial

From: Family-based cognitive behavioural therapy versus family-based relaxation therapy for obsessive-compulsive disorder in children and adolescents (the TECTO trial): a statistical analysis plan for the randomised clinical trial

Outcomes

Type of data

Primary outcome

 OCD symptoms

Children’s Yale–Brown Obsessive Compulsive Scale (CY-BOCS) [14]

Continuous

Assessed at weeks 0, 4, 8, and 16

Secondary outcomes

 Health-related quality of lifea

KIDSCREEN-10 [17]

Continuous

Assessed at weeks 0, 4, 8, and 16

 Adverse events

Negative Effects Questionnaire (NEQ) with 32 items [18]

Continuous

Assessed at weeks 4, 8, and 16

Exploratory outcomes

 Serious adverse events

Dichotomousc

Assessed for weeks 0 to 16

 Assessment of childhood OCDb

Child Obsessive-Compulsive Impact Scale-Revised (COIS-R) [20]

Continuous

Assessed at weeks 0, 4, 8, and 16

 Severity of psychopathology

Clinical Global Impressions Severity (CGI-S) [21]

Continuous

Assessed at weeks 0, 4, 8, and 16

 Change of psychopathology after initiation of treatment

Clinical Global Impressions Improvement (CGI-I) [21]

Continuous

Assessed at weeks 4, 8, and 16

 Severity of psychiatric disturbance and social disability

Children’s Global Assessment Scale (CGAS) [22]

Continuous

Assessed at weeks 0 and 16

 Response rate

Defined as a CY-BOCS score reduction of at least 30% from baseline

Dichotomous

Assessed at weeks 0 and 16

 Remission rate

Defined as no longer meeting the diagnostic criteria for OCD, ICD-10 F42 assessed with K-SADS-PL [13]

Dichotomous

Assessed at week 16

 Suicidality

Suicidality items sum-score assessed with K-SADS-PL [13]

Continuous

Assessed at week 16

 Obsessive-compulsive traitsb

Toronto Obsessive-Compulsive Scale (TOCS) [23]

Continuous

Assessed at weeks 0 and 16

 Parental accommodation to children’s obsessions and compulsions

Family Accommodation Scale – Parent Report (FAS-PR) [24]

Continuous

Assessed at weeks 0, 4, 8, and 16

 Parental stress

Parental Stress Scale (PSS)

Continuous

Assessed at weeks 0, 4, 8, and 16

  1. OCD obsessive-compulsive disorder, K-SADS-PL Kiddie-Schedule for Affective Disorders and Schizophrenia - Present and Lifetime Version
  2. aResults from participants will be analysed as a secondary outcome, while results from parents and/or legal guardians will be analysed as an exploratory outcome
  3. bResults from participants and parents and/or legal guardians will be presented separately
  4. cIf there are multiple serious adverse events per participant, they will also be assessed as a count outcome