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The application of different correlation coefficients to assess the reproducibility of a food frequency questionnaire






European Journal of Cancer Prevention 3(6): 489-497

The application of different correlation coefficients to assess the reproducibility of a food frequency questionnaire

4 different correlation coefficients were computed to investigate the degree of reproducibility of the weekly consumption of 77 food items or groups of foods and of 7 summary questions from a food frequency questionnaire developed in Italy for a study on cancers of the breast and digestive tract. The questionnaire had been administered twice to 452 Italian men and women.


Accession: 002709896

PMID: 7858481

DOI: 10.1097/00008469-199411000-00006



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