Calcium, Vitamin D, Iron, and Folate Messages in Three Canadian Magazines

Publication: Canadian Journal of Dietetic Practice and Research
15 August 2014

Abstract

Purpose: Data from the Canadian Community Health Survey showed that calcium, vitamin D, iron, and folate are nutrients of concern for females 19–50 years of age. The study objectives were to assess the quantity, format, and accuracy of messages related to these nutrients in selected Canadian magazines and to examine their congruency with Canadian nutrition policies.
Methods: Using content analysis methodology, messages were coded using a stratified sample of a constructed year for Canadian Living, Chatelaine, and Homemakers magazines (n = 33) from 2003–2008. Pilot research was conducted to assess inter-coder agreement and to develop the study coding sheet and codebook.
Results: The messages identified (n = 595) averaged 18 messages per magazine issue. The most messages were found for calcium, followed by folate, iron, and vitamin D, and the messages were found primarily in articles (46%) and advertisements (37%). Overall, most messages were coded as accurate (82%) and congruent with Canadian nutrition policies (90%).
Conclusions: This research demonstrated that the majority of messages in 3 Canadian magazines between 2003 and 2008 were accurate and reflected Canadian nutrition policies. Because Canadian women continue to receive much nutrition information via print media, this research provides important insights for dietitians into media messaging.

Résumé

Objectif. Des données de l'Enquête sur la santé dans les collectivités canadiennes ont montré que le calcium, la vitamine D, le fer et l'acide folique sont des nutriments qui préoccupent les femmes de 19 à 50 ans. Les objectifs de cette étude consistaient à évaluer la quantité, le format et l'exactitude des messages portant sur ces nutriments dans des magazines canadiens sélectionnés et à examiner leur cohérence avec les politiques canadiennes en matière de nutrition.
Méthodes. À l'aide d'une méthodologie de l'analyse de contenu, les messages ont été codés au moyen d'un échantillon stratifié représentant une année des magazines Canadian Living, Châtelaine et Homemakers (n = 33) publiés entre 2003 et 2008. Une recherche pilote a été menée dans le but d'évaluer la cohérence entre les codeurs et de mettre au point la feuille et le livre de codage de l'étude.
Résultats. Au total, 595 messages ont été identifiés, et chaque numéro de magazine en contenait en moyenne 18. La plupart des messages trouvés étaient liés au calcium. Suivaient ensuite l'acide folique, le fer et la vitamine D. Les messages ont principalement été trouvés dans des articles (46 %) et des publicités (37 %). De façon générale, la majorité des messages codés étaient exacts (82 %) et cohérents avec les politiques canadiennes en matière de nutrition (90 %).
Conclusions. Cette recherche a démontré que la plupart des messages émis dans 3 magazines canadiens entre 2003 et 2008 étaient exacts et reflétaient les politiques canadiennes en matière de nutrition. Puisque les Canadiennes continuent de recevoir une grande quantité d'information nutritionnelle par l'intermédiaire des médias imprimés, cette recherche fournit aux diététistes d'importants renseignements quant aux messages émis dans les médias.

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Information & Authors

Information

Published In

cover image Canadian Journal of Dietetic Practice and Research
Canadian Journal of Dietetic Practice and Research
Volume 75Number 4December 2014
Pages: 180 - 185

History

Version of record online: 15 August 2014

Authors

Affiliations

Marcia Cooper, PhD, RD
Bureau of Nutritional Sciences, Food Directorate, HPFB, Health Canada, Sir Frederick G. Banting Research Centre, Ottawa, Ont.
Lindsay Zalot, MHSc, RD
Family Health Division, City of Hamilton Public Health Services, Dundas, Ont.
Laurie A. Wadsworth, PhD, PDt, FDC
Department of Human Nutrition, St. Francis Xavier University, Antigonish, NS

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