Patient questionnaire
diabetes-related emotional distress, chronic illness, diabetes
CHRONIC ILLNESS, DIABETES
Sociodemographic data (sex, age, partner status with/without, education ≤8 years/>8 years) and psychological data (see below) were collected via telephone interviews by study team members at the different time points of measurement.The SDM-Q-9 (Shared Decision Making questionnaire; 9 items scored 0–5, total score is the sum 0–45, more SDM with higher score) measures patient-perceived involvement in medical decision making [The PACIC (patient assessment of chronic illness care; 11 items scored 1–5, score is the mean 1–5, better care with higher score) measures patient-perceived patient-centeredness in chronic care [The PAID (problem areas in diabetes; 20 items scored 0–4, total score is the sum multiplied by 1.25 = 0-100, more distress with higher score) measures diabetes-related emotional distress [The EQ-5D-3 L (European quality of life 5 dimensions 3 level version; 5 items with 3 levels, total score is the weighted EQ-5D index from low negative values to 1.0, better quality of life with higher score) measures quality of life [