Prevalence of significant coronary stenosis by vitamin D deficiency status and duration of antiretroviral therapy (ART) use. The prevalences were 8.1% (44/540) and 14.9% (20/134) in those who were not vitamin D deficient and who were vitamin D deficient, respectively. The prevalences were 4.5% (8/177), 9.9% (36/363), 11.9% (5/42), and 16.3% (15/92) for those who had never used ART or used ART for <6 months and were not vitamin D deficient, who had used ART for ≥6 months and were not vitamin D deficient, who had never used ART or used ART for <6 months and were vitamin D deficient, and who had used ART for ≥6 months and were vitamin D deficient, respectively. Abbreviation: ART, antiretroviral therapy.