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The association between cumulative cadmium intake and osteoporosis and risk of fracture in a Chinese population
Umeå University, Faculty of Medicine, Department of Public Health and Clinical Medicine.
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2019 (English)In: Journal of Exposure Science and Environmental Epidemiology, ISSN 1559-0631, E-ISSN 1559-064X, Vol. 29, no 3, p. 435-443Article in journal (Refereed) Published
Abstract [en]

Bone is one of the target organs for cadmium toxicity. However, few studies have shown the association between cumulative cadmium intake and prevalence of osteoporosis and bone fracture. In the present study, we evaluated the association between cumulative cadmium intake and osteoporosis and risk of fracture in a Chinese population. A total of 790 subjects (488 women and 302 men) living in a control area and two cadmium-polluted areas were included. The cumulative cadmium intake was estimated by a food survey. The bone mineral density was determined by using single-photon absorptiometry. The cumulative cadmium intakes were 0.48, 2.14, and 11.00 g for men, and 0.42, 2.11, and 11.12 g in women in control, and moderately and heavily polluted areas, respectively. In women, the odds ratios (ORs) of subjects with a cadmium intake between 2.21 and 10.63 g and >10.63 g were 1.30 (95% CI: 0.58-2.94) and 2.36 (95% CI: 1.14-5.16), compared with those with a cadmium intake < 0.58 g after adjusting to the confounders for osteoporosis. The ORs of subjects with a cadmium intake >10.63 g were 2.34 (95% CI: 1.23-4.38) for all of the women and 2.62 (95% CI: 1.02-5.58) in women ≥ 60 years old, compared with those with a cadmium intake <10.63 g after adjusting to the confounders for bone fractures. In men, similar trends were observed, but no statistical significance was found. In addition, those subjects with renal tubular dysfunction showed high risk of bone fracture. Our results indicate that a high level of cumulative cadmium intake is associated with an increased rate of osteoporosis and fractures among women.

Place, publisher, year, edition, pages
Springer, 2019. Vol. 29, no 3, p. 435-443
Keywords [en]
Bone, Bone fracture, Cadmium, Cumulative intake, Osteoporosis
National Category
Occupational Health and Environmental Health
Identifiers
URN: urn:nbn:se:umu:diva-151968DOI: 10.1038/s41370-018-0057-6ISI: 000464959800015PubMedID: 30185939OAI: oai:DiVA.org:umu-151968DiVA, id: diva2:1249743
Available from: 2018-09-20 Created: 2018-09-20 Last updated: 2019-06-13Bibliographically approved

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Nordberg, Gunnar F.

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