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

Abstract

Background: <br/> <span style="font-size: xx-small; font-family: ArialMT;">To test the psychometric properties of the Persian version of Zarit Burden Interview (ZBI-12) in the </span>Iranian opulation. <br/>Methods: <br/><span style="font-size: xx-small; font-family: ArialMT;">After translating and cultural adaptation of the questionnaire into Persian, 100 caregiver spouses of Iran-</span>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. <br/>Results: <br/> <span style="font-size: xx-small; font-family: ArialMT;">Generally, the internal consistency of the questionnaire was found to be strong (Cronbach's alpha 0.77). Intercorrelation</span>matrix 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 (<em><span style="font-size: xx-small; font-family: Arial-ItalicMT;"><em><span style="font-size: xx-small; font-family: Arial-ItalicMT;">P</span></em></span></em><span style="font-size: xx-small; font-family: ArialMT;"><span style="font-size: xx-small; font-family: ArialMT;">=0.03),General Health (</span></span><em><span style="font-size: xx-small; font-family: Arial-ItalicMT;"><em><span style="font-size: xx-small; font-family: Arial-ItalicMT;">P</span></em></span></em><span style="font-size: xx-small; font-family: ArialMT;">=0.034),Social Functional </span>(0.037), Mental Health (0.023) and Q3 with Physical Function (<em><span style="font-size: xx-small; font-family: Arial-ItalicMT;"><em><span style="font-size: xx-small; font-family: Arial-ItalicMT;">P</span></em></span></em><span style="font-size: xx-small; font-family: ArialMT;">=0.001),Viltality (0.002), Socil Function (0.001).</span> <br/>Conclusions: <br/> <span style="font-size: xx-small; font-family: ArialMT;">Our findings suggest that the Zarit Burden Interview Persian version is both a valid and reliable </span>instrument for measuring the burden of caregivers of individuals with chronic spinal cord injury.