Table 2.

Search strings used.

Search strings
caregiver* OR “care giver*” OR family* OR families* OR parent* OR mother* OR father* OR sibling* OR carer OR carers OR “lay worker*” OR “next of kin” AND
“mental* health*” OR “mental* ill*” OR “mental* disorder*” OR “mental* diseas*” OR depress* OR anxiet* OR substance AND
teen* OR adoles* OR juvenile* OR youth* AND
belief* OR conviction* OR faith OR trust* OR norm OR norms OR custom* OR attitude* OR outlook* OR approach* OR Self-efficac* OR ability* OR Skill OR skills OR expertis* OR able OR abilit* OR talent* OR proficien* OR knowhow OR capabilit* OR knack OR competen* OR Intent* OR determination* OR planning OR resolve OR decide* OR decision* OR choose OR select* OR choice* AND
mobile* OR cell* OR smart OR sms OR “short message service*” OR text* OR device* OR mhealth* OR m-health* OR ehealth* OR e-health* OR “instant messag*” OR app OR apps OR phone* OR smartphone* OR “electronic device*” OR “portable device*” OR “phone intervention*” OR “telephon* intervention*” OR online*) not (“stem cell*” OR “sickle cell*” OR ”assist“ device*” AND
mobile* OR cell* OR smart OR sms OR “short message service*” OR text* OR device* OR mhealth* OR m-health* OR ehealth* OR e-health* OR “instant messag*” OR app OR apps OR phone* OR smartphone* OR “electronic device*” OR “portable device*” OR “phone intervention*” OR “telephon* intervention*” OR online* OR caregiver* OR “care giver*” OR family* OR families* OR parent* OR mother* OR father* OR sibling* OR carer OR carers OR “lay worker*”