When the calcium level was adjusted for albumin, the incidence of grade ≥ 1 hypocalcemia was found to be higher in the severe renal dysfunction group than in the normal renal function group (P = 0.002); however, the incidence of grade ≥ 3 hypocalcemia did not differ between the two groups (P = 0.436). The gene discussed is ALB; the disease is Hypocalcemia.