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Associations of iron status with dietary and other factors in 6-year-old children.
Eur J Clin Nutr. 2007 Mar; 61(3):398-403.EJ

Abstract

OBJECTIVE

To investigate the associations of iron status at 6 years of age with dietary and other factors.

DESIGN

In a cross-sectional study, children's dietary intakes (3-day weighed food record) were recorded, body size was measured and blood samples were taken near their sixth birthday.

SUBJECTS

A sample of 188 children, from two previous studies (cohorts 1 and 2), was contacted, and 139 (74%) agreed to participate.

RESULTS

Multiple regression analyses with dietary and other factors showed that meat and fish consumption, multivitamin/mineral supplement intake (both positively) and cow's milk product consumption (negatively) were associated with log serum ferritin (SF) (adjusted R (2)=0.125; P=0.028; n=129), and juices and residence (rural>urban) with haemoglobin (Hb) (adjusted R (2)=0.085; P=0.034; n=127). Of 21 multivitamin/mineral consumers, none had depleted iron stores compared to 21 iron-depleted of 108 non-consumers (P=0.024). Children living in rural areas (<10,000 inhabitants) (n=33) had higher mean corpuscular volume (MCV) (83.3+/-2.3 fl) than those living in urban areas (>10,000 inhabitants) (82.1+/-3.2 fl; n=103) (P=0.048). Multiple regression analyses with dietary and other factors and growth showed in cohort 1 that residence (rural>urban), weight gain 0-1years (negatively), and meat and fish intake (positively) were associated with Hb (adjusted R (2)=0.323; P=0.030; n=51), meat and fish (positively) with both log SF (adjusted R (2)=0.069; P=0.035; n=52) and MCV (adjusted R (2)=0.064; P=0.035; n=52), and in cohort 2 cow's milk product consumption (negatively) was associated with log SF (adjusted R (2)=0.119; P=0.017; n=41) and residence (rural>urban) with MCV (adjusted R (2)=0.102; P=0.025; n=41).

CONCLUSIONS

Consumption of meat and fish and possibly also juices, as well as multivitamin/mineral intake might affect iron status in 6-year-old children positively, whereas cow's milk product consumption might affect iron status negatively. Slower growth in the first year of life and rural residence are positively related to iron status of 6-year-olds.

Authors+Show Affiliations

Unit for Nutrition Research, Landspitali-University Hospital & Department of Food Science and Nutrition, University of Iceland, Reykjavik, Iceland. bsg@hi.isNo affiliation info availableNo affiliation info available

Pub Type(s)

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

Language

eng

PubMed ID

16988649

Citation

Gunnarsson, B S., et al. "Associations of Iron Status With Dietary and Other Factors in 6-year-old Children." European Journal of Clinical Nutrition, vol. 61, no. 3, 2007, pp. 398-403.
Gunnarsson BS, Thorsdottir I, Palsson G. Associations of iron status with dietary and other factors in 6-year-old children. Eur J Clin Nutr. 2007;61(3):398-403.
Gunnarsson, B. S., Thorsdottir, I., & Palsson, G. (2007). Associations of iron status with dietary and other factors in 6-year-old children. European Journal of Clinical Nutrition, 61(3), 398-403.
Gunnarsson BS, Thorsdottir I, Palsson G. Associations of Iron Status With Dietary and Other Factors in 6-year-old Children. Eur J Clin Nutr. 2007;61(3):398-403. PubMed PMID: 16988649.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Associations of iron status with dietary and other factors in 6-year-old children. AU - Gunnarsson,B S, AU - Thorsdottir,I, AU - Palsson,G, Y1 - 2006/09/20/ PY - 2006/9/22/pubmed PY - 2007/4/24/medline PY - 2006/9/22/entrez SP - 398 EP - 403 JF - European journal of clinical nutrition JO - Eur J Clin Nutr VL - 61 IS - 3 N2 - OBJECTIVE: To investigate the associations of iron status at 6 years of age with dietary and other factors. DESIGN: In a cross-sectional study, children's dietary intakes (3-day weighed food record) were recorded, body size was measured and blood samples were taken near their sixth birthday. SUBJECTS: A sample of 188 children, from two previous studies (cohorts 1 and 2), was contacted, and 139 (74%) agreed to participate. RESULTS: Multiple regression analyses with dietary and other factors showed that meat and fish consumption, multivitamin/mineral supplement intake (both positively) and cow's milk product consumption (negatively) were associated with log serum ferritin (SF) (adjusted R (2)=0.125; P=0.028; n=129), and juices and residence (rural>urban) with haemoglobin (Hb) (adjusted R (2)=0.085; P=0.034; n=127). Of 21 multivitamin/mineral consumers, none had depleted iron stores compared to 21 iron-depleted of 108 non-consumers (P=0.024). Children living in rural areas (<10,000 inhabitants) (n=33) had higher mean corpuscular volume (MCV) (83.3+/-2.3 fl) than those living in urban areas (>10,000 inhabitants) (82.1+/-3.2 fl; n=103) (P=0.048). Multiple regression analyses with dietary and other factors and growth showed in cohort 1 that residence (rural>urban), weight gain 0-1years (negatively), and meat and fish intake (positively) were associated with Hb (adjusted R (2)=0.323; P=0.030; n=51), meat and fish (positively) with both log SF (adjusted R (2)=0.069; P=0.035; n=52) and MCV (adjusted R (2)=0.064; P=0.035; n=52), and in cohort 2 cow's milk product consumption (negatively) was associated with log SF (adjusted R (2)=0.119; P=0.017; n=41) and residence (rural>urban) with MCV (adjusted R (2)=0.102; P=0.025; n=41). CONCLUSIONS: Consumption of meat and fish and possibly also juices, as well as multivitamin/mineral intake might affect iron status in 6-year-old children positively, whereas cow's milk product consumption might affect iron status negatively. Slower growth in the first year of life and rural residence are positively related to iron status of 6-year-olds. SN - 0954-3007 UR - https://www.unboundmedicine.com/medline/citation/16988649/Associations_of_iron_status_with_dietary_and_other_factors_in_6_year_old_children_ DB - PRIME DP - Unbound Medicine ER -