Document Detail


Validation of a quality of life questionnaire in the Pacific Island.
MedLine Citation:
PMID:  21080810     Owner:  NLM     Status:  In-Process    
Abstract/OtherAbstract:
PURPOSE: To adapt an existing validated quality of life instrument, the Impact of Vision Impairment (IVI) questionnaire for Pacific Island countries.
METHODS: Following in-depth interviews (n = 24) and a pilot study (n = 67), the original 32-item IVI questionnaire was translated and adapted in Vanuatu. The Melanesian IVI (IVI_M) was administered to participants not previously involved in the pilot study (n = 189).
RESULTS: Participants included 117 (62%) with mild, moderate or severe vision impairment, 39 with unilateral loss and 33 with normal vision. Eighty-six percent of the original 32-items were deemed relevant by 90% of participants. Items displaying floor effects were removed (4), 2 were combined and 3 items rephrased to reflect Melanesian-specific activities, resulting in a 23-item IVI_M. Nineteen items were relevant to both the Melanesian and Australian contexts including all 8 items related to the emotional reaction to vision loss. IVI_M demonstrated content and construct validity, reliability and discriminated visually healthy populations from those with vision impairment. Vision impairment of < 6/18 negatively effected quality of life.
CONCLUSION: While the adaptation process demonstrated the need for culturally relevant instruments, it also highlighted the value of adapting existing validated instrument for use in cross-cultural research rather than developing a new instrument from first principles.
Authors:
Patricia M O'Connor; Bronwyn C Scarr; Ecosse L Lamoureux; Richard T Le Mesurier; Jill E Keeffe
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2010-11-16
Journal Detail:
Title:  Ophthalmic epidemiology     Volume:  17     ISSN:  1744-5086     ISO Abbreviation:  Ophthalmic Epidemiol     Publication Date:  2010 Dec 
Date Detail:
Created Date:  2010-11-24     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9435674     Medline TA:  Ophthalmic Epidemiol     Country:  England    
Other Details:
Languages:  eng     Pagination:  378-86     Citation Subset:  IM    
Affiliation:
Centre for Eye Research Australia, University of Melbourne, Royal Victorian Eye and Ear Hospital, Australia.
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