It is clarified that the food frequency questionnaire (FFQ) used in the article published in Lipids in Health and Disease [1], as well as in the whole MEDIS study, was a short, semi-quantitative FFQ with 15 questions regarding the basic food groups consumed, as well as with some additional questions regarding beverages' drinking and other nutritional habits [2–4]. The reference Katsouyanni et al., [5] was cited in order to support that in epidemiologic research is common procedure measuring nutritional habits as an average per week during the preceding year (even in the elderly), and was not referring to the FFQ used.
References
Polychronopoulos E, Panagiotakos D, Polystipioti A: Diet, lifestyle factors and hypercholesterolemia in elderly men and women from Cyprus. Lipids Health Dis. 2005, 4: 17- 10.1186/1476-511X-4-17
Polystipioti A: Nutritional habits in elderly men and women from Cyprus. MSc Thesis. 2005, Harokopio University, Athens
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Tyrovolas S, Pounis G, Bountziouka V, Polychronopoulos E, Panagiotakos D: Repeatability and validation of a short, semi-quantitative food frequency questionnaire designed for older adults living in Mediterranean areas: the MEDISFFQ. J Nutr Elder. 2010, 29 (3): 311-24. 10.1080/01639366.2010.499096
Katsouyanni K, Rimm EB, Gnardellis C, Trichopoulos D, Polychronopoulos E, Trichopoulou A: Reproducibility and relative validity of an extensive semiquantitative food frequency questionnaire using dietary records and biochemical markers among Greek schoolteachers. Int J Epidemiol. 1997, 26: S118-S127. 10.1093/ije/26.suppl_1.S118
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The online version of the original article can be found at 10.1186/1476-511X-4-17
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Polychronopoulos, E., Panagiotakos, D.B. & Polystipioti, A. Erratum to: Diet, lifestyle factors and hypercholesterolemia in elderly men and women from Cyprus. Lipids Health Dis 9, 107 (2010). https://doi.org/10.1186/1476-511X-9-107
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DOI: https://doi.org/10.1186/1476-511X-9-107