Inclusion criteria for the patients:  have a nonprogressive, non-neurodegenerative acquired brain injury able to read or understand the questionnaire at least 18 years of age  Inclusion criteria for the caregivers:  primary caregiver of a patient diagnosed with acquired brain injury at least 18 years of age had provided care for at least one month providing care to the patient for more than 4 h per day did not have any major premorbid medical and psychological illnesses able to read or understand the questionnaire  Exclusion criteria for patients and caregivers:  under 18 years of age inability to read and understand questions.