CRP and acute kidney injury: They also had higher BMI (29.4 kg·m−2 vs. 25.1 kg·m−2, p = 0.009), higher PaCO2 (42 mm Hg vs. 35 mm Hg, p = 0.027), lower pH (7.35 vs. 7.44, p = 0.024), higher positive end-expiratory pressure (PEEP) (12 cm H2O vs. 8 cm H2O, p = 0.027), higher procalcitonin (PCT) blood concentration (1.56 ng·mL−1 vs. 0.27 ng·mL−1, p = 0.015), and higher C-reactive protein (CRP) blood concentration (274.3 mg·L−1 vs. 167 mg·L−1, p = 0.045) on ICU admission in comparison to non-AKI group (Table 1 and Table S1).