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Vitamin D deficiency is common, with higher doses showing a better response. However, treatment documentation and follow-up are often inadequate in outpatient settings.

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Area of Science:

  • Internal Medicine
  • Endocrinology
  • Public Health

Background:

  • Vitamin D deficiency is increasingly prevalent.
  • Current treatment regimens lack consensus.
  • Management of vitamin D deficiency in outpatient adults requires investigation.

Purpose of the Study:

  • To determine the management strategies for vitamin D deficiency/insufficiency in outpatient adults in northeast Tennessee.
  • To analyze treatment patterns and outcomes for vitamin D supplementation.

Main Methods:

  • Retrospective record review of 626 adult patients from July 2007-July 2008.
  • Data collected included vitamin D levels, prescribed treatment (dose, duration), and follow-up levels.
  • Vitamin D deficiency defined as <20 ng/mL; insufficiency as 20-29.9 ng/mL.

Main Results:

  • 52% of patients were vitamin D deficient or insufficient.
  • Higher vitamin D supplement doses led to significantly greater changes in serum levels.
  • Patients with deficiency showed a greater response to treatment than those with insufficiency.

Conclusions:

  • Vitamin D deficiency and insufficiency are highly prevalent in this population.
  • Clinicians prescribed higher doses for lower vitamin D levels, with better response.
  • Documentation of treatment and follow-up testing for vitamin D levels was poor.