Table 1.

Definitions of rehabilitation and homelessness.

Concept	Definitions
Rehabilitation	World Health Organization—“A set of interventions designed to optimize functioning and reduce disability in individuals with health conditions in interaction with their environment” (20) Healthcare providers/professional disciplines identified in TBI evidence-based clinical practice guidelines for TBI rehabilitation (27, 29): • Neuropsychologist • Nurse • Nutritionist • Occupational therapist • Physiatrist • Physician • Physiotherapist • Psychologist with expertise in behavioral therapy • Psychometrist • Rehabilitation support personnel • Social worker • Speech-language pathologist • Therapeutic recreationist
Homelessness	Canadian Observatory of Homelessness' typology of homelessness that encompasses the following physical living situations at the time of the research study (38): • Unsheltered—individuals who lack housing and are not accessing shelters • Emergency sheltered—individuals who cannot secure permanent housing and are accessing shelters or other system supports • Provisionally accommodated—individuals without permanent shelter and are accessing accommodations that offer no prospect of permanent