PTH and chronic kidney disease: Our analysis revealed that in the group with PMI, most likely to progress to a lethal outcome were patients with the following on-admission characteristics: urea > 7.5 mmol/L (74.5% vs. 53.6%, p = 0.006), PTH > 6.8 pmol/L (71.7% vs. 52.6%, p = 0.013), urea/albumin ≥ 2.0 (78.7% vs. 56.8%, p = 0.004), Platelets/albumin ≥ 5.9 (67.4% vs. 45.3%, p = 0.004), GGT/Albumin ≥ 7.0 (63.8% vs. 48.4%, p = 0.044), 25(OH)D < 25 mmol/L (15.8% vs. 10.0%, p = 0.039) and CKD (59.6% vs. 42.8%, p = 0.027).