IGFBP7 and acute kidney injury: Urinary [TIMP-2]*[IGFBP7] values in patients with AKI 3 (median 0.92, range 0.13–5.93) were significantly higher than in patients with AKI 0 (median 0.065, range 2.69) or AKI 1 (median 0.23, range 0.02–0.53).