Table 2.

Keywords and definitions for traumatic brain injury and homelessness.

	Keywords describing TBI/homelessness or content consistent with the definition of TBI/homelessness
Traumatic brain injury	Keywords: brain injury or concussion or brain trauma or head injury or head trauma Definition (4): An alteration in brain function, or other evidence of brain pathology, caused by an external force
Homelessness	Keywords: homelessness or roofless or marginally housed or precariously housed or unstably housed or provisionally accommodated or houseless or shelters Definitions of typology of homelessness that encompasses the following physical living situations (40): a) Unsheltered: Individuals who lack housing and are not accessing shelters – Public or private spaces without consent or contract – Places not intended for permanent human habitation b) Emergency sheltered: Individuals who cannot secure permanent housing and are accessing shelters or other system supports – Emergency overnight shelters for people who are homeless – Shelters for individuals/families impacted by family violence – Emergency shelter for people fleeing a natural disaster or destruction of accommodations due to fires, floods, etc. c) Provisionally accommodated: Individuals without permanent shelter and are accessing accommodations that offer no prospect of permanence – Interim housing – Living temporarily with others – Accessing short-term, temporary rental without security of tenure – Living in institutional care and lack housing arrangements – Accommodation/reception centers for recently arrived immigrant and refugees d) At risk of homelessness: Individuals or families whose current housing situations are dangerously lacking security or stability – People at imminent risk of homelessness – Individuals and families who are precariously housed

TBI, Traumatic brain injury.