IGFBP7 and acute kidney injury: [TIMP-2] × [IGFBP7] values were higher in AKI patients compared to those who did not develop AKI (0.63 [0.13–2.19] vs 0.23 [0.06–0.59], p < 0.001), as well as PCT (1.20 [0.20–6.70] vs 0.20 [0.10–0.90], p < 0.001).