the zarit caregiver burden interview short form (zbi-12) in spouses of veterans with chronic spinal cord injury, validity and reliability of the persian version

Background: to test the psychometric properties of the persian version of zarit burden interview (zbi-12) in the iranian opulation. methods: after translating and cultural adaptation of the questionnaire into persian, 100 caregiver spouses of iran-iraq war (1980-88) veterans with chronic spinal cord injury who live in the city of mashhad, iran, invited to participate in the study. the persian version of zbi-12 accompanied with the persian sf-36 was completed by the caregivers to test validity of the persian zbi-12. a pearson`s correlation coefficient was calculated for validity testing. in order to assess reliability of the persian zbi-12, we administered the zbi-12 randomly in 48 caregiver spouses again 3 days later. results: generally, the internal consistency of the questionnaire was found to be strong (cronbach’s alpha 0.77). intercorrelationmatrix between the different domains of zbi-12 at test-retest was 0.78. the results revealed that majority of questions the persian zbi_12 have a significant correlation to each other. in terms of validity, our results showed that there is significant correlations between some domains of the persian version the short form health survey -36 with the persian zarit burden interview such as q1 with role physical (p=0.03),general health (p=0.034), social functional (0.037), mental health (0.023) and q3 with physical function (p=0.001),viltality (0.002), socil function (0.001). conclusions: our findings suggest that the zarit burden interview persian version is both a valid and reliable instrument for measuring the burden of caregivers of individuals with chronic spinal cord injury.