Table 1.

Summary of database search terms.

Databases	Keywords
PubMed	(((((((((((((((((((tele*[Title/Abstract]) OR ("M-health"[Title/Abstract])) OR (mhealth[Title/Abstract])) OR ("M health"[Title/Abstract])) OR ("E-health"[Title/Abstract])) OR (Ehealth[Title/Abstract])) OR ("E health"[Title/Abstract])) OR (digital[Title/Abstract])) OR (web*[Title/Abstract])) OR (app[Title/Abstract])) OR (platform[Title/Abstract])) OR (video*[Title/Abstract])) OR (audiovisual[Title/Abstract])) OR (electronic[Title/Abstract])) OR (mobile[Title/Abstract])) OR (computer[Title/Abstract])) OR (virtual[Title/Abstract])) OR (application[Title/Abstract])) AND (((((((caregiv*[Title/Abstract]) OR (carer*[Title/Abstract])) OR (relative*[Title/Abstract])) OR (families[Title/Abstract])) OR (family[Title/Abstract])) OR (spouse*[Title/Abstract])) OR (partner*[Title/Abstract]))) AND ((((("intensive care"[Title/Abstract]) OR ("critical care"[Title/Abstract])) OR (ICU[Title/Abstract])) OR ("critical illness"[Title/Abstract])) OR ("critically ill"[Title/Abstract])) AND ((english[Filter]) AND (alladult[Filter]) AND (2000:2021[pdat])) Filters: English, Adult: 19+ years
CINAHL	AB (tele* OR "m-health" OR mhealth OR "m health" OR "e-health" OR ehealth OR "e health" OR digital OR web* OR app* OR platform OR electronic OR video* OR comput* OR mobile OR audiovisual OR virtual) AND (family OR caregiv* OR relative* OR spouse* OR partner* OR families) AND ("intensive care" OR "critical care" OR "critical illness" OR icu) OR TI (tele* OR "m-health" OR mhealth OR "m health" OR "e-health" OR ehealth OR "e health" OR digital OR web* OR app* OR platform OR electronic OR video* OR comput* OR mobile OR audiovisual OR virtual) AND (family OR caregiv* OR relative* OR spouse* OR partner* OR families) AND ("intensive care" OR "critical care" OR "critical illness" OR icu) Limiters - Published Date: 20000101-20211231; English Language; Age Groups: All Adult
SCOPUS	TITLE-ABS-KEY (tele* OR "M-health" OR mhealth OR "M health" OR "E-health" OR ehealth OR "E health" OR digital OR web* OR app OR application OR platform OR electronic OR video* OR computer* OR mobile OR audiovisual OR virtual) AND TITLE-ABS-KEY (family OR caregiv* OR relative* OR spouse* OR partner* OR families) AND TITLE-ABS-KEY ("intensive care" OR "critical care" OR "critical illness" OR icu OR "critically ill") AND NOT (neonat* OR adolescent* OR pediatric OR infant* OR child* OR teen*) AND (LIMIT-TO (PUBYEAR, 2021) OR LIMIT-TO (PUBYEAR, 2020) OR LIMIT-TO (PUBYEAR, 2019) OR LIMIT-TO (PUBYEAR, 2018) OR LIMIT-TO (PUBYEAR, 2017) OR LIMIT-TO (PUBYEAR, 2016) OR LIMIT-TO (PUBYEAR, 2015) OR LIMIT-TO (PUBYEAR, 2014) OR LIMIT-TO (PUBYEAR, 2013) OR LIMIT-TO (PUBYEAR, 2012) OR LIMIT-TO (PUBYEAR, 2011) OR LIMIT-TO (PUBYEAR, 2010) OR LIMIT-TO (PUBYEAR, 2009) OR LIMIT-TO (PUBYEAR, 2008) OR LIMIT-TO (PUBYEAR, 2007) OR LIMIT-TO (PUBYEAR, 2006) OR LIMIT-TO (PUBYEAR, 2005) OR LIMIT-TO (PUBYEAR, 2004) OR LIMIT-TO (PUBYEAR, 2003) OR LIMIT-TO (PUBYEAR, 2002) OR LIMIT-TO (PUBYEAR, 2001) OR LIMIT-TO (PUBYEAR, 2000)) AND (LIMIT-TO (LANGUAGE, "English"))
Web of Science	(TI = ((tele* OR "m-health" OR mhealth OR "m health" OR "e-health" OR ehealth OR "e health" OR digital OR web* OR app OR application OR platform OR electronic OR video* OR computer* OR mobile OR audiovisual OR virtual) AND (family OR caregiv* OR relative* OR spouse* OR partner* OR families) AND ("intensive care" OR "critical care" OR "critical illness" OR "critically ill" OR icu))) OR (AB = ((tele* OR "m-health" OR mhealth OR "m health" OR "e-health" OR ehealth OR "e health" OR digital OR web* OR app OR application OR platform OR electronic OR video* OR computer* OR mobile OR audiovisual OR virtual) AND (family OR caregiv* OR relative* OR spouse* OR partner* OR families) AND ("intensive care" OR "critical care" OR "critical illness" OR "critically ill" OR icu))) OR (AK = ((tele* OR "m-health" OR mhealth OR "m health" OR "e-health" OR ehealth OR "e health" OR digital OR web* OR app OR application OR platform OR electronic OR video* OR computer* OR mobile OR audiovisual OR virtual) AND (family OR caregiv* OR relative* OR spouse* OR partner* OR families) AND ("intensive care" OR "critical care" OR "critical illness" OR "critically ill" OR icu))) AND LANGUAGE: (English) Indexes=SCI-EXPANDED, SSCI, A&HCI, CPCI-S, CPCI-SSH, BKCI-S, BKCI-SSH, ESCI, CCR-EXPANDED, IC Timespan=2000-2021