Table 1.

Final database search strategy.

#1	‘wish to die’ [Text Word]	Wish to hasten death
#2	‘wish to hasten death’ [Text Word]
#3	‘wish for hastening death’ [Text Word]
#4	‘desire to die’ [Text Word]
#5	‘desire for early death’ [Text Word]
#6	‘want to die’ [Text Word]
#7	‘desire for death’ [Text Word]
#8	#1 OR #2 OR #3 OR #4 OR #5 OR #6 OR #7
#9	‘tool’ [Text Word]	Measurements
#10	‘instrument’ [Text Word]
#11	‘scale’ [Text Word]
#12	‘validation’ [Text Word]
#13	‘measuring’ [Text Word]
#14	‘evaluation’ [Text Word]
#15	‘validation’ [Text Word]
#16	‘assessment’ [Text Word]
#17	#9 OR #10 OR #11 OR #12 OR #13 OR #14 OR #15 OR #16
#18	‘advanced illness’ [Text Word]	Population
#19	‘palliative care’ [MeSH]
#20	‘cancer’ [Text Word]
#21	‘chronic illness’ [Text Word]
#22	‘terminally ill’ [MeSH]
#23	#18 OR #19 OR #20 OR #21 OR #22
#24	#8 AND #18 AND #23