Instruments used to assess patient-reported outcomes
| Instruments (RE-AIM dimension) | Outcomes | Scale | Validity/reliability |
| MDASI (effectiveness) | 13 items on symptoms, and 6 items on symptom interference with daily functions | 11-point Likert-scale, 0=not present and 10=as bad as you can imagine | Developed for cancer setting German version: Cronbach alpha 0.82 (symptom intensity) and 0.84 (interference)54 |
| SES6G (effectiveness) | 6 items on patient’s perceived self-efficacy | 10-point Likert-scale, 1=not at all confident and 10=totally confident | Developed for chronic conditions, applied in cancer settings German version: construct validity r=0.578, p<0.001; internal consistency: Crohnbach alpha 0.9355 |
| LASA Mood Scale (effectiveness) | 1-item: emotional well-being | Visual Analogue Scale (100 mm), 0=happy 100=miserable | Concurrent validity between LASA Mood Scale and a comprehensive 28-item adjective checklist (original in German: Befindlichkeitsskala BfS) was acceptable (median r=0.6, p<0.001) with breast cancer patients, and has proven to be valid for emotional distress screening72 |
| PR-CISE (implementation) | 5 items on patient’s experience of nurse-led supportive care | Yes; somewhat; no | Developed for chemotherapy setting28; translation of items into German for study: validation has to be confirmed |
LASA, linear analogue self-assessment; MDASI, MD Anderson Symptom Inventory; PR-CISE, patient-reported chemotherapy indicators of symptoms and experiences; RE-AIM, Reach Effectiveness—Adoption Implementation Maintenance; SES6G, self-efficacy for managing chronic disease.