This study was conducted with 167 dialysis patients at Erciyes University Faculty of Medicine, Department of Internal Medicine, Department of Nephrology, and Dialysis Unit, with the approval of the Ethics Committee of Erciyes University Medical Faculty (date: 25.09.2019, no: 2019/673).

Patients aged ≥18 years, undergoing dialysis treatment, and having available data on serum calcium, phosphorus, parathormone, albumin, hemoglobin, blood urea nitrogen (BUN), creatinine, and dialysate calcium levels within the last six months were included in the study.

Inclusion Criteria:

• Age ≥ 18 years,
• Diagnosed with chronic kidney disease (CKD) and undergoing dialysis treatment (hemodialysis or peritoneal dialysis)
• Availability of laboratory results within the last 6 months: serum calcium, phosphorus, parathormone, albumin, hemoglobin, blood urea nitrogen (BUN), creatinine, and dialysate calcium
• Patient consent to participate

Exclusion Criteria:

• Age < 18 years
• Patients not on dialysis treatment
• Missing or incomplete laboratory data
• History of malignancy, acute infection, or other systemic diseases interfering with mineral and bone metabolism
• Patients who did not provide consent or could not complete the questionnaire

This study was performed with dialysis patients from Erciyes University Hospital, Faculty of Medicine, Department of Internal Medicine, and Department of Nephrology, and Dialysis Unit

They can be request.