Physicians underestimate calcium intake in women.

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ID: 108575
2010
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Abstract
Personalized nutritional counseling about calcium intake during office encounters requires rapid estimation of calcium intake. We compared the accuracy of physician estimates to a validated calcium intake measure and characterized women whose intakes were incorrectly deemed inadequate by physicians.As part of a controlled trial of brief, office-based calcium intake counseling of women, family physicians estimated calcium intake from patients' self-reported intake of dairy food/beverage intake and from their supplement use. We compared estimates to the Short Calcium Questionnaire (SCQ), a validated 7-day dietary recall measure completed by patients. Sensitivity/specificity of physician-estimated calcium intake was estimated by comparison with the SCQ.For 97 women, SCQ rated 32 (33%) as inadequate, 55 (57%) as adequate, and 10 (10%) as excessive. When compared to SCQ, the sensitivity of physician-estimated calcium intake inadequacy was 97% (95% confidence interval [CI]: 94%-100%), specificity was 51% (95% CI: 41%-61%), and positive predictive value was 49% (95% CI: 39%-59%). Women with underestimated intakes were more likely to report a family history of osteoporosis and take a daily multivitamin. The major source of physician underestimation of calcium intake was underestimate of dairy product contribution.More accurate estimates of dairy-based calcium intake will lead to greater specificity in identifying inadequate calcium intake.
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snyder2010physiciansfamily Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Snyder, Sandra M;Tyler, Carl V;Panaite, Vanessa;Smolak, Michael J;Powell, Brenda L;Young, Christopher W;Conway, Jessica L;Ford, Donald B;Zyzanski, Stephen J;
Journal family medicine
Year 2010
DOI
DOI not found
URL URL not found
Keywords
Children diet australia salt food sources dietary sodium dietary potassium sodium:potassium ratio

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