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Iron intake does not significantly correlate with iron deficiency among young Japanese women: a cross-sectional study.
Public Health Nutr 2009; 12(9):1373-83PH

Abstract

OBJECTIVES

We evaluated the association of nutrient intake with Fe deficiency with regard to lifestyle factors and health condition in young Japanese women. Uniquely among developed countries, dietary habits render Japanese populations vulnerable to Fe deficiency, owing to their relatively low intake of Fe and high intake of Fe absorption inhibitors, such as green tea and soyabeans.

DESIGN

A cross-sectional study.

SETTING AND SUBJECTS

The subjects were 1019 female Japanese dietetic students aged 18-25 years. Dietary habits during the preceding month were assessed using a previously validated, self-administered, diet history questionnaire. Blood analysis was performed to assess body Fe status. Subjects were categorized with Fe deficiency when their serum ferritin levels were <12 ng/ml. Twenty-nine dietary variables, i.e. intakes of energy, sixteen nutrients including Fe and twelve food groups, were analysed using multivariate logistic regression models adjusted for possible confounders.

RESULTS

Of the subjects, 24.5% were categorized with Fe deficiency. However, no dietary factors assessed were significantly associated with Fe deficiency. The risk of Fe deficiency was significantly lower in women with infrequent or no menstrual cycles than in those with regular cycles (OR = 0.58; 95% CI 0.34, 1.00) and significantly higher in women with heavy menstrual flow than in women with average flow, albeit that these were self-reported (OR = 1.83; 95% CI 1.35, 2.48).

CONCLUSIONS

These results suggest that dietary habits, including Fe intake, do not significantly correlate with Fe deficiency among young Japanese women.

Authors+Show Affiliations

Department of Preventive Medicine and Public Health, Keio University School of Medicine, Tokyo, Japan.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Multicenter Study
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

19063766

Citation

Asakura, Keiko, et al. "Iron Intake Does Not Significantly Correlate With Iron Deficiency Among Young Japanese Women: a Cross-sectional Study." Public Health Nutrition, vol. 12, no. 9, 2009, pp. 1373-83.
Asakura K, Sasaki S, Murakami K, et al. Iron intake does not significantly correlate with iron deficiency among young Japanese women: a cross-sectional study. Public Health Nutr. 2009;12(9):1373-83.
Asakura, K., Sasaki, S., Murakami, K., Takahashi, Y., Uenishi, K., Yamakawa, M., ... Takebayashi, T. (2009). Iron intake does not significantly correlate with iron deficiency among young Japanese women: a cross-sectional study. Public Health Nutrition, 12(9), pp. 1373-83. doi:10.1017/S1368980008004072.
Asakura K, et al. Iron Intake Does Not Significantly Correlate With Iron Deficiency Among Young Japanese Women: a Cross-sectional Study. Public Health Nutr. 2009;12(9):1373-83. PubMed PMID: 19063766.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Iron intake does not significantly correlate with iron deficiency among young Japanese women: a cross-sectional study. AU - Asakura,Keiko, AU - Sasaki,Satoshi, AU - Murakami,Kentaro, AU - Takahashi,Yoshiko, AU - Uenishi,Kazuhiro, AU - Yamakawa,Miki, AU - Nishiwaki,Yuji, AU - Kikuchi,Yuriko, AU - Takebayashi,Toru, AU - ,, Y1 - 2008/12/09/ PY - 2008/12/10/pubmed PY - 2009/11/10/medline PY - 2008/12/10/entrez SP - 1373 EP - 83 JF - Public health nutrition JO - Public Health Nutr VL - 12 IS - 9 N2 - OBJECTIVES: We evaluated the association of nutrient intake with Fe deficiency with regard to lifestyle factors and health condition in young Japanese women. Uniquely among developed countries, dietary habits render Japanese populations vulnerable to Fe deficiency, owing to their relatively low intake of Fe and high intake of Fe absorption inhibitors, such as green tea and soyabeans. DESIGN: A cross-sectional study. SETTING AND SUBJECTS: The subjects were 1019 female Japanese dietetic students aged 18-25 years. Dietary habits during the preceding month were assessed using a previously validated, self-administered, diet history questionnaire. Blood analysis was performed to assess body Fe status. Subjects were categorized with Fe deficiency when their serum ferritin levels were <12 ng/ml. Twenty-nine dietary variables, i.e. intakes of energy, sixteen nutrients including Fe and twelve food groups, were analysed using multivariate logistic regression models adjusted for possible confounders. RESULTS: Of the subjects, 24.5% were categorized with Fe deficiency. However, no dietary factors assessed were significantly associated with Fe deficiency. The risk of Fe deficiency was significantly lower in women with infrequent or no menstrual cycles than in those with regular cycles (OR = 0.58; 95% CI 0.34, 1.00) and significantly higher in women with heavy menstrual flow than in women with average flow, albeit that these were self-reported (OR = 1.83; 95% CI 1.35, 2.48). CONCLUSIONS: These results suggest that dietary habits, including Fe intake, do not significantly correlate with Fe deficiency among young Japanese women. SN - 1475-2727 UR - https://www.unboundmedicine.com/medline/citation/19063766/Iron_intake_does_not_significantly_correlate_with_iron_deficiency_among_young_Japanese_women:_a_cross_sectional_study_ L2 - https://www.cambridge.org/core/product/identifier/S1368980008004072/type/journal_article DB - PRIME DP - Unbound Medicine ER -