Outcome
Type |
Measure |
Description |
Time frame |
Safety issue |
Other |
Process and target variables: Behavioral activation |
3-item Behavioral Activation for Depression Scale - ACtivation subscale (BADS-AC-3, theoretical range: 0-18, where a higher score indicates a higher level of behavioral activation) |
Pre-treatment (within 2 weeks before treatment), once each week during treatment (9 assessments in total), post-treatment (after treatment, completed within 90 days), and at follow-up 6 and 12 months after treatment (each completed within 90 days). |
|
Other |
Process and target variables: Symptom preoccupation |
Symptom Preoccupation Scale (preliminary scale). A higher score indicates higher degree of preoccupation with symptoms. This is to be regarded as an an item pool, and the scale is is under development, which means that the total range cannot be preregistered. |
Pre-treatment (within 2 weeks before treatment), once each week during treatment (9 assessments in total), post-treatment (after treatment, completed within 90 days), and at follow-up 6 and 12 months after treatment (each completed within 90 days). |
|
Other |
Process and target variables: Physical activity |
Godin-Shephard Leisure-Time Physical Activity Questionnaire (GSLTPAQ, theoretical range 0-99, where a higher score indicates a higher level of physical activity). If necessary for statistical modeling, the GSLTPAQ will be dichotomized to indicate active (=24) vs. insufficiently active (<24). |
Pre-treatment (within 2 weeks before treatment), once each week during treatment (9 assessments in total), post-treatment (after treatment, completed within 90 days), and at follow-up 6 and 12 months after treatment (each completed within 90 days). |
|
Other |
Process and target variables: Health-related self-efficacy |
Based loosely on the Arthritis Self-efficacy Scale. Theoretical range of 0-60, where a higher score indicates a higher level of general health-related self-efficacy. |
Pre-treatment (within 2 weeks before treatment), once each week during treatment (9 assessments in total), post-treatment (after treatment, completed within 90 days), and at follow-up 6 and 12 months after treatment (each completed within 90 days). |
|
Other |
Basis for cost-effectiveness analysis: Utility (health-related quality of life) |
EuroQol 5D (EQ-5D). Theoretical range: 0-1, i.e., scored as utility for the purpose of calculating quality-adjusted life years for health economic analysis. A higher utility score indicates a higher health-related quality of life. |
Pre-treatment assessment (within 2 weeks before treatment), post-treatment assessment (immediately after treatment, completed within 90 days), 6 months after treatment (completed within 90 days), 12 months after treatment (completed within 90 days). |
|
Other |
Basis for cost-effectiveness analysis: Resource use (medical costs and productivity losses) |
Trimbos Institute and Institute of Medical Technology Questionnaire for Costs Associated with Psychiatric Illness (TIC-P). This instrument is scored in terms of resource use for the purpose of calculating societal costs for health economic analysis. |
Pre-treatment assessment (within 2 weeks before treatment), post-treatment assessment (immediately after treatment, completed within 90 days), 6 months after treatment (completed within 90 days), 12 months after treatment (completed within 90 days). |
|
Other |
Screening only: Alcohol use |
Alcohol Use Disorders Identification Test (AUDIT, theoretical range: 0-40, where a higher score indicates more problematic alcohol use) |
At screening |
|
Other |
Screening only: Substance use |
Drug Use Disorders Identification Test (DUDIT, theoretical range: 0-44, where a higher score indicates more problematic substance use) |
At screening |
|
Other |
Screening only: General distress |
Hospital Anxiety and Depression Scale (HADS, theoretical range: 0-42, where a higher score indicates more general distress) |
At screening |
|
Primary |
General anxiety |
General Anxiety Disorder 7 (GAD-7, theoretical range: 0-21, where a higher score indicates more general anxiety) |
Pre-treatment (within 2 weeks before treatment), via weekly assessments, to post-treatment (after treatment, completed within 90 days). Secondary analysis: from pre-treatment up to follow-up 12-months after treatment (completed within 90 days). |
|
Primary |
Depressive symptoms |
Patient Health Questionnaire 9 (PHQ-9, theoretical range: 0-27, where a higher score indicates more symptoms of depression) |
Pre-treatment (within 2 weeks before treatment), via weekly assessments, to post-treatment (after treatment, completed within 90 days). Secondary analysis: from pre-treatment up to follow-up 12-months after treatment (completed within 90 days). |
|
Secondary |
Fear of cancer recurrence |
9-item Fear of Cancer Recurrence Inventory (FCRI-9, theoretical range: 0-36, where a higher score indicates a more pronounced fear of cancer recurrence) |
Pre-treatment (within 2 weeks before treatment), via weekly assessments, to post-treatment (after treatment, completed within 90 days). Secondary analysis: from pre-treatment up to follow-up 12-months after treatment (completed within 90 days). |
|
Secondary |
Health anxiety |
14-item Health Anxiety Inventory (HAI-14, theoretical range: 0-42, where a higher score indicates more health anxiety) |
Pre-treatment assessment (within 2 weeks before treatment) to post-treatment assessment (immediately after treatment, completed within 90 days). Secondary analysis: from pre-treatment up to follow-up 12-months after treatment (completed within 90 days). |
|
Secondary |
Somatic symptom burden |
Somatic Symptom Scale 8 (SSS-8, theoretical range: 0-32, where a higher score indicates a higher somatic symptom burden). Exploratory secondary analyses will be based on individual items, each scored 0-4. |
Pre-treatment assessment (within 2 weeks before treatment) to post-treatment assessment (immediately after treatment, completed within 90 days). Secondary analysis: from pre-treatment up to follow-up 12-months after treatment (completed within 90 days). |
|
Secondary |
Body image distress |
Body Image Scale (BIS, theoretical range: 0-30, where a higher score indicates a higher level of body image distress) |
Screening (within 6 months before treatment) to post-treatment assessment (immediately after treatment, completed within 90 days) |
|
Secondary |
Disability |
12-item World Health Organization Disability Assessment Schedule 2.0 (WD2-12, theoretical range: 0-100, where a higher score indicates more disability) |
Pre-treatment assessment (within 2 weeks before treatment) to post-treatment assessment (immediately after treatment, completed within 90 days). Secondary analysis: from pre-treatment up to follow-up 12-months after treatment (completed within 90 days). |
|
Secondary |
Health-related quality of life |
36-item Short Form Health Survey (SF-36, scored as a Mental Health Component Score and a Physical Health Component Score according to standard norms, both with a theoretical range of 0-100, where a higher score indicates a higher health-related quality of life) |
Pre-treatment assessment (within 2 weeks before treatment) to post-treatment assessment (immediately after treatment, completed within 90 days) |
|
Secondary |
Treatment credibility and patient expectancy of improvement |
Credibility/Expectancy scale (C/E scale, theoretical range: 0-50, where a higher score indicates higher credibility/expectancy) |
Week 2 of treatment |
|
Secondary |
Relationship with the therapist (therapeutic alliance) |
Working Alliance Inventory (WAI, theoretical range: 6-42, where a higher score indicates a stronger therapeutic alliance) |
Week 2 of treatment |
|
Secondary |
Patient satisfaction with treatment |
8-item Client satisfaction questionnaire (CSQ-8, theoretical range: 8-32, where a higher score indicates higher satisfaction with treatment) |
Post-treatment assessment (immediately after treatment, completed within 90 days) |
|
Secondary |
Adverse events |
Brief questionnaire with three free-text items, each of which can be used to report an adverse event. For each adverse event, a rating is given of initial negative impact, and negative impact at post-treatment, on a scale from 0: "not at all", to 3: "very negatively". Reported primarily in terms of the number of participants reporting at least one adverse event. |
Post-treatment assessment (immediately after treatment, completed within 90 days) |
|
Secondary |
Perceived negative effects of treatment |
20-item Negative Effects Questionnaire (NEQ-20). This will be reported as the proportion of endorsed items in the following subdomains: increase in symptoms, perceived insufficient quality of treatment, dependency, stigma, and hopelessness. |
Post-treatment assessment (immediately after treatment, completed within 90 days) |
|