An S-shaped curve that shows that approximately 90 percent of this population has serum 25OHD concentrations above 50 nmol/L.

FIGURE I-14Cumulative distribution of serum 25OHD for 71- to 79-year-olds in Canada for the 2007 to 2009 time period

SOURCE: CHMS, Cycle 1, 2007–2009.

From: I, Proportion of the Population Above and Below 40 nmol/L Serum 25-Hydroxyvitamin D Concentrations and Cumulative Distribution of Serum 25-Hydroxyvitamin D Concentrations: United States and Canada

Cover of Dietary Reference Intakes for Calcium and Vitamin D
Dietary Reference Intakes for Calcium and Vitamin D.
Institute of Medicine (US) Committee to Review Dietary Reference Intakes for Vitamin D and Calcium; Ross AC, Taylor CL, Yaktine AL, et al., editors.
Washington (DC): National Academies Press (US); 2011.
Copyright © 2011, National Academy of Sciences.

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