ALB and hyperparathyroidism: Hyperparathyroidism was found in 2/31 (6.4%) patients (37.8 and 42.1 ng/L, respectively, nv < 36.8 ng/L), with levels of vitamin D low or within the reference range (26.7 ng/mL and 35 ng/mL, respectively) and normal albumin-corrected calcium levels (9.34 mg/dL and 9.38 mg/dL, respectively).