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Food photographs: practical guidelines I. Design and analysis of studies to validate portion size estimates

  • Michael Nelson (a1) and Jóhanna Haraldsdóttir (a2)
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*Corresponding author: E-mail: michael.nelson@kcl.ac.uk
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1LR Young , M Nestle . Portion sizes in dietary assessment: issues and policy implications. Nutr. Rev. 1995; 53: 149–58.

2YS Cypel , PM Guenther , GJ Petot . Validity of portion-size measurement aids: A review. J. Am. Diet. Assoc. 1997; 97: 289–92.

4TJ Cole . Sampling, study size and power. In: BM Margetts , M Nelson , eds. Design Concepts in Nutritional Epidemiology, second edition. Oxford: Oxford University Press, 1997.

5M Nelson . The validation of dietary assessment. In: BM Margetts , M Nelson . Design Concepts in Nutritional Epidemiology, second edition. Oxford: Oxford University Press, 1997.

8PM Howat , R Mohan , C Champagne , C Monlezun , P Wozniak , GA Bray . Validity and reliability of reported dietary intake data. J. Am. Diet. Assoc. 1994; 94: 169–73.

11SA Smith , DR Campbell , PJ Elmer , MC Martini , JL Slavin , JD Potter . The University of Minnesota Cancer Prevention Research Unit vegetable and fruit classification scheme (United States). Cancer Causes and Control 1995; 6: 292302.

12FG Crawford , J Mayer , RM Santella , TB Cooper , R Ottman , W-Y Tsai , G Simon-Cereijido , M Wang , D Tang , FP Perera . Biomarkers of environmental tobacco smoke in preschool children and their mothers. J. Natl. Cancer Inst. 1994; 86: 1398–402.

15J Haraldsdóttir , A Tjønneland , K Overvad . Validity of individual portion size estimates in a food frequency questionnaire. Int. J. Epidemiol. 1994; 23: 787–96.

17T Kuehnemann , K Stanek , K Eskridge , C Angle . Comparability of four methods for estimating portion size during a food frequency interview with caregivers of young children. J. Am. Diet. Assoc. 1994; 94: 548–50.

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Public Health Nutrition
  • ISSN: 1368-9800
  • EISSN: 1475-2727
  • URL: /core/journals/public-health-nutrition
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