Table 2

Schedule for outcome measurement

	Outcome	Measurement	Baseline phase		Intervention phase		Follow-up phase
	Outcome	Measurement	Day 28 of first line chemotherapy	Day 42 of first line chemotherapy	Day 28 of first line chemotherapy	Day 42 of first line chemotherapy	3, 6, 12, 24, 36 months after	After postmortem of the patient
Patient in baseline phase	Patient’s communication behaviour	RIAS		〇
	Patient’s medical and sociological background	Cancer stage, diagnosis date, treatment status, treatment history, comorbidities, sex, age, work status, household income, household size, social support, marital status, educational experience, treatment and care preference at the end of life	〇
	Patient’s evaluation of consultation	‘How did the oncologist respond to your questions?’ ‘Did you ask selected questions during consultation?’ ‘How much have you discussed with the oncologist in the visit?’		〇
Patient in intervention and follow-up phase	Patient’s communication behaviour	RIAS				〇
	Patient’s psychological distress	HADS			〇	〇	〇
	Patient’s physical and functional QoL	FACT-Physical and Functional			〇	〇	〇
	Patient’s comprehensive QoL	Short version of CoQoLo			〇	〇	〇
	Patient’s trust in oncologist	TiOS			〇	〇	〇
	Patient’s satisfaction with oncologist	CSQ			〇	〇	〇
	Patient’s acceptance in cancer experience	PEACE			〇	〇	〇
	Patient’s prognosis and treatment perception	PTPQ			〇	〇	〇
	Patient’s evaluation of consultation	‘How did the oncologist respond to your questions?’ ‘Did you ask selected questions during consultation?’ ‘How much have you discussed with the oncologist in the visit?’				〇
	Patient’s evaluation of intervention in the IG	‘Did you understand how to use the QPL and did you actually use it?’ ‘Do you think you will continue the intervention?’ ‘Was the intervention useful to you?’ ‘Did the oncologist talk about the QPL?’ ‘Did the QPL help you ask the oncologist questions?’ ‘Is the QPL useful?’ ‘Did you read the QPL before the visit?’ ‘Do you think you will read the QPL in the future?’				〇
	Patient’s medical and sociological background	Cancer stage, diagnosis date, treatment status, treatment history, comorbidities, sex, age, job status, household income, household size, social support, marital status, educational experience, treatment and care preference at the end of life			〇
	Patient’s medical utilisation at the end of life	The date of death, any chemotherapy agent given within 14 days of death, any new chemotherapeutic regimen started within 30 days of death, and involvement of hospice and palliative care services						〇
Caregiver in baseline phase	Caregiver’s communication behaviour	RIAS		〇
	Caregiver’s characteristics	Sex, age, relationship with the patient, job status, household income, household size, social support, marital status, educational experience, and preferences on treatment and care for the patient at the end of life	〇
	Caregiver’s evaluation of consultation	‘How did the oncologist respond to your questions?’ ‘Did you ask selected questions during consultation?’ ‘How much have you discussed with your oncologist in the visit?’		〇
Caregiver in intervention and follow-up phase	Caregiver’s communication behaviour	RIAS				〇
	Caregiver’s psychological distress	K6			〇	〇	〇	〇
	Caregiver’s QoL	EQ-5D			〇	〇	〇	〇
	Caregiver’s satisfaction with oncologist	CSQ			〇	〇	〇
	Caregiver’s sociological background	Sex, age, relationship with the patient, job status, household income, household size, social support, marital status, educational experience, and preferences on treatment and care for the patient at the end of life
	Caregiver’s prognosis and treatment perception	PTPQ			〇	〇	〇
	Caregiver’s evaluation of consultation	‘How did the oncologist respond to your questions?’ ‘Did you ask selected questions during consultation?’ ‘How much have you discussed with the oncologist in the visit?’				〇
	Caregiver’s evaluation of intervention in the IG	‘Did you understand how to use the QPL and did you actually use it?’ ‘Do you think you will continue the intervention?’ ‘Was the intervention useful to you?’ ‘Did the oncologist talk about the QPL?’ ‘Did the QPL help you ask the oncologist questions?’ ‘Is the QPL useful?’ ‘Did you read the QPL before the visit?’ ‘Do you think you will read the QPL in the future?’				〇
	Patient’s comprehensive end-of-life QoL	Short version of GDI						〇
Oncologist	Oncologist’s patient-centred communication behaviours	SHARE-RE		〇		〇
	Oncologist’s patient-preferred communication behaviour	SHARE-total		〇		〇
	Oncologist’s patient-preferred communication behaviour	RIAS		〇		〇
	Oncologist’s sociological background	Sex, age, clinical experience	〇
	Oncologist’s evaluation of medical utilisation by patient	The date of management		〇		〇
	Oncologist’s evaluation of intervention	The usefulness of intervention				〇

CoQoLo, Comprehensive Quality of Life Outcome inventory; CSQ, Client Satisfaction Questionnaire; EQ-5D, 5 Dimension EuroQol; FACT-Physical and Functional, Physical Well-being and Functional Well-being subscales of the Functional Assessment of Cancer Therapy; GDI, Good Death Inventory; HADS, Hospital Anxiety and Depression Scale; IG, intervention group; K6, K6 Non-specific Psychological Distress Scale; PEACE, Peace, Equanimity and Acceptance in the Cancer Experience Questionnaire; PTPQ, Prognosis and Treatment Perceptions Questionnaire; QoL, quality of life; QPL, question prompt list; RIAS, Roter Intention Analysis System; SHARE, setting, how to deliver the bad news, additional information, and reassurance and emotional support; TiOS, Trust in Oncologists Scale.