Further analysis stratified according to the diagnostic criteria revealed that the incidences of AKI were 50% (95% CI: 28.4 to 71.6), 20.5% (95% CI: 5.7 to 52.5), 21% (12.6 to 32.9), and 13.3% (95% CI: 6.1 to 26.7) when rhabdomyolysis was diagnosed based on serum and urinary myoglobin levels, serum CK and/or myoglobin levels, serum CK levels, and serum myoglobin levels, respectively (Fig. 7). Here, MB is linked to acute kidney injury.