IGFBP7 and acute kidney injury: Median urinary [TIMP-2]•[IGFBP7] was numerically, but not significantly (P = 0.41) higher in the non-AKI group II compared to the non-AKI group I (Table 1) and significantly increased in the AKI group (P<0.001 vs. non-AKI group I; P = 0.001 vs. non-AKI-group II).