In contrast, peak urinary [TIMP-2]·[IGFBP7] and NGAL levels increased with AKI severity during ICU admission (P = 0.002) whereas no such relation was found between urinary cystatin C and AKI severity (P = 0.14; Supplementary Table 3in Supplementary Material available online at http://dx.doi.org/10.1155/2015/158658). Here, IGFBP7 is linked to acute kidney injury.