en ارولوژی Urology پژوهشي Research <div style="text-align: justify;"><span style="line-height:2;"><span style="font-size:12px;"><span style="font-family:Tahoma;"><b><span lang="EN-GB">Introduction:</span></b> <span style="color:black">Chronic Kidney Disease (CKD) is associated with mineral metabolism disorders, such as calcium, phosphorus, and calcium-regulating hormones. Moreover, the need to prescribe and use corticosteroid compounds increases the risk of osteoporosis in these patients. Therefore, this study aimed to investigate the serum level of Vitamin D and its relationship with osteoporosis in kidney transplant patients (KTPs) in Birjand, Iran. </span><br> <b><span lang="EN-GB">Methods:</span></b> <span style="color:black">This descriptive-analytical cross-sectional study included 50 KTPs in Birjand, Iran, who had passed at least one year after a kidney transplant. Vitamin D serum level and bone mineral density (BMD) were measured by the Dual-Energy X-Ray Absorptiometry method. Data analysis was done using SPSS software (version 19) and statistical tests, such as Fisher&#39;s exact test, chi-square, independent samples t-test, and Pearson correlation coefficient at &alpha;=0.05 level.</span><br> <b><span lang="EN-GB">Results:</span></b> <span style="color:black">Vitamin D level showed no significant relationship with BMD, T score, and Z score. The mean of Z SPINE, Z RAD, T SPINE, T HIP, and T RAD in women was significantly higher than that of men (P<0.05). Moreover, no statistically significant linear correlation of vitamin D levels was observed with T-score and Z-score indices according to age in the studied patients. Finally, the results showed no significant relationship of Vitamin D levels with BMD, T score, and Z score.</span><br> <b><span lang="EN-GB">Conclusion:</span></b> <span style="color:black">Considering that similar studies have been conducted at a limited level, it is suggested that more comprehensive studies be conducted to more accurately investigate and determine the relationship between Vitamin D and osteoporosis in KTPs.</span></span></span></span><br> <span style="font-size:11pt"><span style="line-height:normal"><span style="font-family:Calibri,sans-serif"><b><span style="font-size:12.0pt"><span style="font-family:"Times New Roman",serif"></span></span></b></span></span></span></div> Kidney Transplantation, Osteoporosis, Vitamin D 103 110 http://jsurgery.bums.ac.ir/browse.php?a_code=A-10-469-1&slc_lang=en&sid=1 Negin Mozafarmoghadam 100319475328460011597 0009-0004-4719-9384 No Department of Internal Medicine, School of Medicine, Birjand University of Medical Sciences, Birjand, Iran Asghar Zarban 100319475328460011598 100319475328460011598 No Department of Clinical Biochemistry, School of Medicine, Cardiovascular Diseases Research Center, Birjand University of Medical Sciences, Birjand, Iran Zeinab Saremi 100319475328460011599 100319475328460011599 No Department of Internal Medicine, School of Medicine, Birjand University of Medical Sciences, Birjand, Iran Gholamreza Sharifzadeh 100319475328460011600 100319475328460011600 No Department of Epidemiology and Biostatistics, School of Health, Social Determinants of Health Research Center, Birjand University of Medical Sciences, Birjand, Iran Vajehallah Raeesi vajehallah.raeesi2@gmail.com 100319475328460011601 100319475328460011601 Yes Department of Internal Medicine, School of Medicine, Cardiovascular Diseases Research Center, Birjand University of Medical Sciences, Birjand, Iran