Description
There is existing research noting a possible correlation between vitamin D insufficiency and irritable bowel syndrome (IBS). The etiology of irritable bowel syndrome is unknown with the goal of the health care provider being symptom control. There are studies suggesting insufficient vitamin D levels may cause an inflammatory response in the gut leading to symptoms of irritable bowel syndrome. This study noted a possible correlation between insufficient vitamin D levels and irritable bowel syndrome in a small rural gastroenterology practice in Western Pennsylvania. A literature review was performed on IBS, vitamin D, and the possible correlation between vitamin D and IBS. The diagnosis of irritable bowel syndrome was broken down into IBS/ diarrhea, IBS/ constipation, and IBS/mixed according to the ROME criteria that is used in daily practice. Out of 118 patients with the diagnosis of IBS that were included in the study, only 62 of these patients had a vitamin D level drawn within the last 5 years. Thirty of these patients had insufficient vitamin D levels. The expected value from the Chi-Square test as derived from a proportional analysis of low vitamin D levels in the general population of the United States was 19.8. The observed value from this study is 30, a 10.2 value higher than the expected value. The Chi-square test indicated significance, thereby the (30) IBS patients (48.3%) the total patients with low levels of vitamin D as compared (32) IBS patients (51.1%) of the total patients with normal levels of Vitamin D, where Chi-square (1, n = 62) = 7.6, p < .006.
Further investigation into a possible correlation between vitamin D insufficiency and symptoms of irritable bowel syndrome in the adult patient would be a positive step towards this challenging functional bowel disorder.