Cohort study2018Open access

Plasma 25-hydroxyvitamin D concentration and risk of type 2 diabetes and pre-diabetes: 12-year cohort study

Park SK, Garland CF, Gorham ED, BuDoff L, Barrett-Connor E

PloS one · 43 citations

How it was studied

Design
Cohort study (indexed by PubMed)
Studied in
People
Main outcome
Clinical events such as disease or death

Who paid for it

Funding
Independent funding
Government
National Institutes of Health
University or hospital
University of California, San Diego
Government
National Institute on Aging
Government
National Institute of Diabetes and Digestive and Kidney Diseases
Government
NIA NIH HHS
Government
NIH HHS
Government
NIDDK NIH HHS
Grants
National Institute on Aging (R01 AG028507); National Institute on Aging (AG07181); National Institute of Diabetes and Digestive and Kidney Diseases (R01 DK031801); National Institute of Diabetes and Digestive and Kidney Diseases (DK-31801); National Institute on Aging (AG028507); National Institute of Diabetes and Digestive and Kidney Diseases (AG07181); National Institute on Aging (R37 AG007181); National Institute on Aging (R01 AG007181); National Institutes of Health (AG028507); National Institutes of Health (AG07181); National Institutes of Health (DK31801)

Based on 7 listed funder(s) and full-text disclosure statement.

Publication

Published
2018-04-19 · PLoS One · vol. 13 · issue 4 · p. e0193070
Publisher
Public Library of Science
Cited
70 citations · more than 98% of similar papers · 6.9× the field average
Impact
Top 10% most cited in its field
References
57 works
Access
Open access (journal) · PUBLIC-DOMAIN
Research areas
Vitamin D Research Studies · Diabetes and associated disorders · HIV-related health complications and treatments
Keywords
Medicine, Diabetes mellitus, Type 2 diabetes, Internal medicine, Hazard ratio, Cohort, Endocrinology, Vitamin D and neurology, Cohort study, Gastroenterology, Confidence interval
MeSH
humans, diabetes mellitus, type 2, prediabetic state, calcium, vitamin d, glucose tolerance test, risk factors, cohort studies, dietary supplements, adult, aged, aged, 80 and over, middle aged, female, male

5 authors

From KR, US

  • Sue K. ParkSeoul National University
  • Cedric F. Garland · correspondingUniversity of California San Diego
  • Edward Doerr GorhamUniversity of California San Diego
  • Luke BuDoffUniversity of California San Diego
  • Elizabeth L Barrett-ConnorUniversity of California San Diego

Abstract

Background

It has been reported that higher plasma 25-hydroxyvitamin D is associated with lower risk of type 2 diabetes. However the results to date have been mixed and no adequate data based on a cohort are available for the high end of the normal range, above approximately 32 ng/ml or 80 nmol/L.

Methods

We performed a cohort study of 903 adults who were known to be free of diabetes or pre-diabetes during a 1997-1999 visit to a NIH Lipid Research Centers clinic. Plasma 25(OH)D was measured at Visit 8 in 1977-1979. The mean age was 74 years. The visit also included fasting plasma glucose and oral glucose tolerance testing. Follow-up continued through 2009.

Results

There were 47 cases of diabetes and 337 cases of pre-diabetes. Higher 25(OH)D concentrations (> 30 ng/ml) were associated with lower hazard ratios (HR) for diabetes: 30-39 ng/ml or 75-98 nmol/L: HR = 0.31, 95% CI = 0.14-0.70; for 40-49 ng/ml or 100-122 nmol/L: HR = 0.29, CI = 0.12-0.68; for > 50 ng/ml or 125 nmol/L: HR = 0.19, CI = 0.06-0.56. All HRs are compared to < 30 ng/ml or 75 nmol/L. There was an inverse dose-response gradient between 25(OH)D concentration and risk of diabetes with a p for trend of 0.005. Each 10 ng/mL or 25 nmol/L higher 25(OH)D concentration was associated with a HR of 0.64, CI = 0.48-0.86. 25(OH)D concentrations were more weakly inversely associated with pre-diabetes risk, and the trend was not significant.

Conclusion

Further research is needed on whether high 25(OH)D might prevent type 2 diabetes or transition of prediabetes to diabetes.

Abstract via Europe PMC. Copyright remains with the authors or publisher (CC0).

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