Distribution | Measurement instrument | Description | Item no., range and scoring |
---|---|---|---|
Patient Q1 | Decisional Conflict Scale [7] | Patient-reported perceived measure of four of five dimensions of decisional conflict (e.g., uncertainty, uninformed, unclear values, unsupported) | 12 items 5 point Likert scale (0–4) Mean standardized score*25 (0–100) |
Control Preference Scale [27] | Patient-reported preference for the patient’s preferred role in shared decision making | 1 item with five statements (pick one) | |
Access to digital PtDA | Patients in intervention arm II are asked if they have accessed and used the digital PtDA | Yes/No – if no, to state the reason: • Cannot install the app • Cannot open the PtDA in the app • Problems with e-Boks • Other technical issues • Did not have the time • Do not want to see the options • Other cause / do not know | |
Patient Q2 | Shared Decision Making Process 4 (SDM Process_4) [24] | Patient-reported engagement | 4 items 4 point Likert scale (0–1, yes/no) Points are summed (0–4) |
Decisional Conflict Scale [7] | Patient-reported perceived measure of five dimensions of decision making | 16 items 5 point Likert scale (0–4) Mean standardized score*25 (0–100) | |
Shared Decision Making Questionnaire 9 (SDM-Q-9) [25] | Patient-reported experience measure of perceived level of involvement | 9 items 6 point Likert scale (0–5) Mean score*20 (0–100) | |
CollaboRATE [26] | Patient-reported measure of patient experienced involvement | 3 items 10 point Likert scale (0–9) Mean score (0–9) | |
Preparation for decision making scale [12] | Patient-reported measure of preparation for decision making | 10 items 5 point Likert scale (1–5) Mean standardized score*25 (0–100) | |
Access to paper-based PtDA | Patients in intervention arm II are asked if the clinician showed them the paper-based PtDA during consultation | Yes/No/Do not know | |
Clinician Q1 | Shared Decision Making Questionnaire 9 Doctor (SDM-Q-doc) [28] | Clinician-reported measure of perceived level of involvement | 9 items 6 point Likert scale (0–5) Mean standardized score*20 (0–100) |
Use of digital PtDA | Clinicians are asked if patients in intervention arm II took out their smartphone or tablet during consultation to use the digital PtDA | Yes/no | |
Observer O1 | OPTION5 [28] | Observer-perceived patient involvement in shared decision making | 5 items 5 point Likert scale (0–4) Mean standardized score*25 (0–100)` |
Other | Length of consultation | Minutes based on the audio recordings |