{"title":"The Association Between Vitamin D Deficiency and Diabetes in Adult African Americans and Whites: An NHANES Study.","authors":"Alula Hadgu, Fengxia Yan, Robert Mayberry","doi":"10.1007/s40615-024-02144-4","DOIUrl":null,"url":null,"abstract":"<p><strong>Objective: </strong>The primary objective of this cross-sectional study is to investigate the association between vitamin D deficiency (VDD) and diabetes and see if this association is the same for adult (age ≥ 20) African Americans (AAs) and Whites. The secondary objective is to examine the distribution of the 25-hydroxyvitamin D test among AAs and Whites and to evaluate the appropriateness of using the same cut-off point for both groups to diagnose VDD.</p><p><strong>Methods: </strong>Our analysis is based on the 2011-2014 National Health and Nutrition Examination Surveys (NHANES). We used two common propensity score adjustment methods to analyze the data-propensity score matching (PSM) and the inverse probability of treatment weighting (IPTW).</p><p><strong>Results: </strong>The prevalence of diabetes for AAs and Whites was 12.27% (95% CI, 10.47-14.07%) and 7.24% (95% CI, 6.35-8.13%), respectively. The prevalence of VDD for AAs and Whites was 65.29% (95% CI, 62.01-68.58%) and 19.49% (95% CI, 16.53-22.45%), respectively. Under PSM, the odds ratios for the diabetes-VDD association for AAs and Whites were 0.94 (95% CI, 0.70-1.27) and 2.16 (95% CI, 1.49-3.13), respectively. Under IPTW, the VDD-diabetes odds ratios for AAs and Whites were 0.83 (95% CI, 0.64-1.10) and 2.35 (95% CI, 1.67-3.30), respectively. Our results further demonstrate that the 25-hydroxyvitamin D measurements are significantly different for AAs and Whites across the general population, as well as the vitamin D-sufficient and vitamin D-deficient populations.</p><p><strong>Conclusion: </strong>The prevalence of VDD and diabetes was higher for AAs compared to Whites. However, VDD was associated with increased diabetes risk for Whites but not for AAs. Though more research is needed to explain why this is the case, a reason for this may be that the 25-hydroxyvitamin D test or its associated cut-off point for defining VDD may not accurately reflect the vitamin D status among AAs.</p>","PeriodicalId":16921,"journal":{"name":"Journal of Racial and Ethnic Health Disparities","volume":null,"pages":null},"PeriodicalIF":3.2000,"publicationDate":"2024-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Racial and Ethnic Health Disparities","FirstCategoryId":"3","ListUrlMain":"https://doi.org/10.1007/s40615-024-02144-4","RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"PUBLIC, ENVIRONMENTAL & OCCUPATIONAL HEALTH","Score":null,"Total":0}
引用次数: 0
Abstract
Objective: The primary objective of this cross-sectional study is to investigate the association between vitamin D deficiency (VDD) and diabetes and see if this association is the same for adult (age ≥ 20) African Americans (AAs) and Whites. The secondary objective is to examine the distribution of the 25-hydroxyvitamin D test among AAs and Whites and to evaluate the appropriateness of using the same cut-off point for both groups to diagnose VDD.
Methods: Our analysis is based on the 2011-2014 National Health and Nutrition Examination Surveys (NHANES). We used two common propensity score adjustment methods to analyze the data-propensity score matching (PSM) and the inverse probability of treatment weighting (IPTW).
Results: The prevalence of diabetes for AAs and Whites was 12.27% (95% CI, 10.47-14.07%) and 7.24% (95% CI, 6.35-8.13%), respectively. The prevalence of VDD for AAs and Whites was 65.29% (95% CI, 62.01-68.58%) and 19.49% (95% CI, 16.53-22.45%), respectively. Under PSM, the odds ratios for the diabetes-VDD association for AAs and Whites were 0.94 (95% CI, 0.70-1.27) and 2.16 (95% CI, 1.49-3.13), respectively. Under IPTW, the VDD-diabetes odds ratios for AAs and Whites were 0.83 (95% CI, 0.64-1.10) and 2.35 (95% CI, 1.67-3.30), respectively. Our results further demonstrate that the 25-hydroxyvitamin D measurements are significantly different for AAs and Whites across the general population, as well as the vitamin D-sufficient and vitamin D-deficient populations.
Conclusion: The prevalence of VDD and diabetes was higher for AAs compared to Whites. However, VDD was associated with increased diabetes risk for Whites but not for AAs. Though more research is needed to explain why this is the case, a reason for this may be that the 25-hydroxyvitamin D test or its associated cut-off point for defining VDD may not accurately reflect the vitamin D status among AAs.
期刊介绍:
Journal of Racial and Ethnic Health Disparities reports on the scholarly progress of work to understand, address, and ultimately eliminate health disparities based on race and ethnicity. Efforts to explore underlying causes of health disparities and to describe interventions that have been undertaken to address racial and ethnic health disparities are featured. Promising studies that are ongoing or studies that have longer term data are welcome, as are studies that serve as lessons for best practices in eliminating health disparities. Original research, systematic reviews, and commentaries presenting the state-of-the-art thinking on problems centered on health disparities will be considered for publication. We particularly encourage review articles that generate innovative and testable ideas, and constructive discussions and/or critiques of health disparities.Because the Journal of Racial and Ethnic Health Disparities receives a large number of submissions, about 30% of submissions to the Journal are sent out for full peer review.