In summary, in this nested case-control study of adult patients with chronic hypoparathyroidism investigating the association between biochemical parameters and development of CKD, patients who had a higher proportion of albumin-corrected serum calcium measurements outside/above/below of 2.00–2.25 mmol/L (8.0–9.0 mg/dL, i.e., disease-recommended lower than normal population reference range) had increased odds of developing CKD. Here, ALB is linked to chronic kidney disease.