Measurements
chronic medical illness, Anxiety, anxiety, pain
DISORDER
Patients’ demographic data included age, sex, marital status, education, religion, the person most involved in the patient’s care, and whether this person lives with the patient. For clinical characteristics, the severity of anxiety symptoms were measured using the seven-item General Anxiety Disorder (GAD-7) scaleDiagnosis was not included in the patient questionnaire but was ascertained by the data collectors and checked with the GP if there was uncertainty.For patients’ perception of the quality of ACP communication with their GP, on a 10-point Likert scale patients indicated how much information they received from their GP about ACP; and to what extent their GP listened to what is important for them to live well, what is important to them regarding future care (for example, place of care), and their worries regarding future health (for example, pain and/or illness exacerbation).ACP engagement was measured using the 15-item version of the ACP Engagement Survey, which has been validated with patients with chronic medical illness and can be used to detect differences in ACP behaviour processes.