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Table 3 Peak levels of CK and Mb according to the occurrence of acute kidney injury (RIFLE criteria used)

From: An observational study on rhabdomyolysis in the intensive care unit. Exploring its risk factors and main complication: acute kidney injury

RIFLE-criteria None Risk Injury Failure
Number (%) 1,440 (81.4%) 171 (9.7%) 75 (4.2%) 83 (4.7%)
CK (U/l) 433 (186–744) 474 (257–869) 669 (439–1415)* 873 (410–2669)*
sMb (μg/l) 228 (107–444) 362 (158–764)* 617 (204–1382)* 740 (255–2349)*
uMb (μg/l) 9 (9–66) 17 (9–372)* 11 (9–341)* 58 (9–431)*
  1. Data presented as median (Q1 - Q3).
  2. *p < 0.05 compared with the group with RIFLE = 0, test on log-transformed CK, sMb, and uMb.
  3. sMb, serum myoglobin; uMb, urinary myoglobin; CK, creatine kinase.
  4. RIFLE : R(isk) = 1, I(njury) = 2, F(ailure) = 3, L(oss), E(nd stage).