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Validation of a screener to measure overall lifestyle habits: The MEDiterranean LIFEstyle index (LB375)
Author(s) -
Sotos Prieto Mercedes
Publication year - 2014
Publication title -
the faseb journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.709
H-Index - 277
eISSN - 1530-6860
pISSN - 0892-6638
DOI - 10.1096/fasebj.28.1_supplement.lb375
Subject(s) - intraclass correlation , concordance , mediterranean diet , cohen's kappa , medicine , index (typography) , food frequency questionnaire , body mass index , demography , kappa , statistics , gerontology , environmental health , mathematics , psychometrics , clinical psychology , geometry , sociology , world wide web , computer science
The aim of this study was to conduct an external validation of the previous developed MEDiterranean LIFEstyle 28‐item (MEDLIFE) index. A full length validated 142‐item questionnaire (full‐Q) (which includes a food frequency questionnaire) and the MEDLIFE index assessing three blocks: food consumption, traditional Mediterranean dietary habits and physical activity, rest and social interaction patterns) were administered to 196 adults men and women (mean age 41.4±9.2 y) from the Program SI! Study. MEDLIFE index had an intraclass correlation coefficient=0.544, showing acceptable ability to rank participants by MEDLIFE‐derived from full‐Q. Absolute agreement measured by kappa statistics showed strong concordance (k=0.81‐1) for 10.7% of the items; and good (k=0.61‐0.80) to moderate (k=0.41‐0.60) for most of the items evaluated. In the crude classification analysis, 52.1% of the participants were classified in the same tertile by both instruments whereas only 7.14% were in the opposite tertile. Bland Alman’s analysis showed limits of agreement ranged from 3.67 to 6.81(mean 1.58). In conclusion, the MEDLIFE index is a valid instrument to measure overall Mediterranean lifestyle, and may be used as a short screening tool in clinical and epidemiological studies Grant Funding Source : PI11/01885