Table 3.

Popular topics of palliative and end-of-life care tweets posted in Canada before and after the start of the vaccination program.

Topics		Keywords	Examples (provided verbatim)
Before
	Topic 1: Toronto palliative care	“Toronto palliative,” “Toronto,” “challenge,” “homeless,” “people,” “onpoli,” “need,” “Ontario,” and “challenge”	Toronto palliative patients who were homeless confronted new challenges due to COVID-19
	Topic 2: cancer-cannot-wait initiative	“cancercantwait,” “onpoli,” “care planning,” “ccsn,” “mpp,” “advocacy,” “virtual,” “discuss,” “disruption cancer,” “late,” and “delay”	Live Now! Advocacy Week Meeting! Discussion: How can we incorporate #cancercare in pandemic planning? With MPP @JR_Ottawa #onpoli #COVID19 #cancercantwait
	Topic 3: personal experience	“family,” “love,” “grief,” “caregiver,” “end of life,” “ltc,” “cancer patient,” “community,” and “experience”	My heart breaks for you & thousands more. I live in a country and was fortunate enough to spend 32 days in hospice with my beautiful sister before she died
After
	Topic 1: new-normal-same-cancer care campaign	“newnormalsamecancer,” “thing normal,” “postpone,” “healthcare team,” “Canadian,” and “check”	The #NewNormalSameCancer campaign is a call to action for everyone living with cancer and pre-diagnosed cancer to reprioritize cancer care. Cancer won’t wait for #COVID19 to be over
	Topic 2: cancer-cannot-wait initiative	“2020 symposium,” “watch video,” “ccsn,” “disruption,” “webinar,” “cancerawareness,” “tune update,” and “open letter”	CADTH 2020 Symposium featured CCSN’s COVID-19 and the Disruption of Cancer Care in Canada. Watch the video! #cancercantwait #COVID19
	Topic 3: personal experience	“mother,” “visit,” “grief,” “family,” “hospital,” “end life,” and “die”	Feel so helpless for others! My mom-in-law died, not from COVID-19, but we couldn’t visit her
	Topic 4: vaccination	“vaccine,” “receive,” “staff,” “doctor,” “long,” “live,” “cancer patient,” and “family”	We are super excited to be part of the COVID-19 vaccine rollout! This is an important step in keeping not only our staff and hospice families safe, but our community as well