Disease activity and quality of life were assessed using validated questionnaires, which were administered at every clinic visit. The researchers also looked at the prevalence and seasonality of Vitamin D deficiency in this inflammatory bowel disease population, as well as its association with IBD-related hospitalizations, surgeries and medication use.
This retrospective cohort study conducted by Dr. Alex Ulitsky and his colleagues analyzed vitamin D levels of 504 inflammatory bowel disease patients. They recorded the patients' lowest Vitamin D measurements and date when each low measurement was taken.
Dr. Ulitsky and his team found almost 50 percent of the patients were Vitamin D deficient at some point, with 11 percent being severely deficient. Vitamin D deficiency was not significantly associated with being hospitalized for IBD or having IBD-related surgeries. However, in both Crohn's disease (CD) and ulcerative colitis (UC) patients, vitamin D deficiency was independently associated with having increased disease activity scores compared to those with normal levels of Vitamin D. Vitamin D deficient CD patients, but not UC patients, had worse quality of life when compared to patients who were not Vitamin D deficient.
According to Dr. Ulitsky, "All IBD patients, irrespective of their disease, disease location or nature should have their Vitamin D levels checked regularly and corrected aggressively when insufficiency is found."-American College of Gastroenterology
