Table 2.
Overview of patient questionnaires including scale origin, algorithm cut-offs, and administration timepoints
| Self-report questionnaires | Origin | Algorithm cut-off |
PRE | FU4 | FU8 | FU12 | FU52 |
|---|---|---|---|---|---|---|---|
| Functioning, quality of life and health behaviors | |||||||
| Brunnsviken Brief Quality of Life Scale 12-items (BBQ) | PUB | X | X | X | |||
| DAily Routines for Well-being INventory 13-items (DARWIN) | CON | X | X | X | |||
| Outcome Rating Scale 4-items (ORS) | PUB | X | X | X | X | X | |
| World Health Organization Disability Assessment Schedule 2.0 12-items (WHODAS 2.0) | PUB | X | X | X | |||
| (Primary Outcome) World Health Organization Disability Assessment Schedule 2.0 8-items (WHODAS 2.0) | PUB | X | X | X | X | X | |
| Symptoms | |||||||
| Alcohol Use Disorders Identification Test-Concise (AUDIT-C-3) | PUB | 3–41 | X | X | X | X | X |
| Generalized Anxiety Disorder 2-item (GAD-2) | PUB | X | X | X | X | X | |
| Generalized Anxiety Disorder 7-item (GAD-7) | PUB | 9 | X | X | X | ||
| Insomnia Severity Index 2-item (ISI-2) | PUB | 4 | X | X | X | X | X |
| Karolinska Exhaustion Disorder Scale 3-item (KEDS-3) | CON | 112 | X | X | X | X | X |
| Obsessive Compulsive Disorder 3-item (OCD-3) | CON | 3 | X | X | X | X | X |
| Pain (One-item rating from 0 to 10) | CON | X | X | X | X | X | |
| Panic Disorder Severity Scale 2-item (PDSS-SR-2) | EMP | 2 | X | X | X | X | X |
| Patient Health Questionnaire 2-item (PHQ-2) | PUB | X | X | X | X | X | |
| Patient Health Questionnaire 9-item (PHQ-9) | PUB | 8 | X | X | X | ||
| Perceived Stress Scale 3-item (PSS-3) | CON | 8 | X | X | X | X | X |
| Short Health Anxiety Inventory 3-item (SHAI-3) | EMP | 3 | X | X | X | X | X |
| Social Phobia Inventory – Abbreviated Version (Mini-SPIN-3) | PUB | 5 | X | X | X | X | X |
| Questionnaires used for health economic analyses | |||||||
| EuroQol-5 Dimensions (Eq. 5D) | PUB | X | X | X | |||
| Trimbos/iMTA questionnaire for Costs associated with Psychiatric illness (TiC-P) | PUB | X | X | X | |||
| Question about sick leave 1-item | X | X | |||||
| Treatment credibility, satisfaction and adverse events | |||||||
| Adverse events 3-item | CON | X | X | ||||
| Adverse events 9-item | CON | X | |||||
| Assessment of goal achievement (Evaluation of change) 2-items | CON | X | |||||
| Assessment of your mental health care at the PCC 9-items | CON | X | |||||
| Client Satisfaction Questionnaire (CSQ) 4-items | CON | X | |||||
| Patient Global Impression Improvement 1-item (PGI-I) | PUB | X | X | X | X | ||
| Session Rating Scale 5-items (SRS) | PUB | X | X | X | |||
| Treatment Credibility Scale 5-items | PUB | X | |||||
| Sociodemographic and clinical data | |||||||
| Background questions 10-items | X | ||||||
| Questions about care outside the study 4-items | X | ||||||
| Questions about health issues and care 6-items | X | ||||||
1 The cut-off is set to 4 for men and 3 for women as well as patients with other gender identities
2 To reach the cut-off, it is also required that the patient attributes their symptoms to long-term stress
Note: The origin of the measure is defined as follows: PUB (published and empirically tested); EMP (created empirically through factor analytic item-reduction and sensitivity-to-change analyses on large datasets from previous trials conducted by the research group, not yet published); CON (created through consensus by the researchers or an expert group, not yet published or empirically tested)