Prevalence of abnormal serum 25-hydroxyvitamin D and its association with hemoglobin level in pre dialysis CKD patients: a cross-sectional study from Himalayan country.

Background: CKD has been recognized as risk factors for 25(OH) D deficiency, and Low levels of 25(OH) D have been suggested to be a trigger factor of decreased level of Hb. However, there is lack of information about the magnitude of 25(OH) D deficiency and Hb level in Nepalese CKD patients. Therefore, the aim of present study was to investigate the prevalence of abnormal 25(OH) D in non-dialyzed CKD patients, and further to examine its association with Hb level.