PIK3C2A and acute kidney injury: The initial CPK and peak CPK levels were 4441 (IQR, 1871–9055) U/L and 5705 (IQR, 2274–13,395) U/L, respectively, showing notable disparities compared with those in the non-AKI group (8036 (IQR, 2414–29,280) U/L and 10,015 (IQR, 3323–36,150) U/L, respectively; p < 0.001).