5. Outcomes: discussions of EoL/EoL care (primary).

Primary outcome: discussions of EoL/EoL care  e.g. frequency, length, type, participants
Study ID	Discussion with clinicians	Discussion with surrogates	Documented discussion EoL care planning	Number of questions in consultation	Conversation duration	Communication content	Conversation timing
Agar 2017	‐	‐	‐	‐	X  Facilitated case conference intervention duration (non‐comparative)	‐	‐
Au 2012	X (at last visit) Self‐reported questionnaire; 2 weeks after consultation	X (since last visit) Self‐reported questionnaire; 2 weeks after consultation	‐	‐	‐	‐	‐
Bernacki 2019	‐	‐	X Conversation number/patient EMR review; after death	‐	X Physician report, post‐consultation (non‐comparative)	X Conversation content/quality SIC domains/patient EMR review; after death; coded 0 to 4 on number of domains discussed and documented (≥ 1 SIC, discussion about: values/goals, prognosis/illness understanding, EoL care, life‐sustaining treatment preferences)	X Timing of first documented SIC before death EMR review; after death
Clayton 2007	‐	‐	‐	X Questions, concerns, items tallied across 9 QPL categories; post‐consultation; coded 112 questions QPL grouped in 9 categories; 85 issues covered by QPL	‐	‐	‐
Lautrette 2007	‐	‐	‐	‐	X At time of family conference with ICU staff	‐	‐
Walczak 2017	‐	‐	‐	X Number of questions, cues from patients, carers Coded audio‐recorded consultation; 1 week post‐CSP session; coding to identify number of direct questions, cues plus those on prognosis, EoL care, future care options, general issues	‐	‐	‐

X: outcome assessed; ‐: outcome not reported.

CSP: communication support programme; EMR: electronic medical record; EoL: end of life; ICU: intensive care unit; QPL: question prompt list; SIC: serious illness conversation.