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Open Access Highly Accessed Research article

Derivation and internal validation of an equation for albumin-adjusted calcium

Matthew T James12, Jianguo Zhang1, Andrew W Lyon3 and Brenda R Hemmelgarn12*

Author Affiliations

1 Department of Medicine, University of Calgary, Calgary, Alberta, Canada

2 Department of Community Health Sciences, University of Calgary, Calgary, Alberta, Canada

3 Calgary Laboratory Services, Calgary, Alberta, Canada

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BMC Clinical Pathology 2008, 8:12  doi:10.1186/1472-6890-8-12

Published: 27 November 2008

Additional files

Additional file 1:

Bland-Altman plot including 95% limits of agreement between adjusted calcium by the previously published equation and adjusted calcium by the locally derived equation (Note: mean difference = 0.09, 95% limits of agreement: 0.043 to 0.136, units = mmol/L). Abbreviations: Adj. = Adjusted.

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