IGFBP7 and acute kidney injury: When the pre-test probability of 20% was combined with the PLR and NLR, the post-test probabilities of urinary TIMP-2 and IGFBP7 ≥2.0 (ng/mL)2/1000 and <2.0 (ng/mL)2/1000 for AKI were 62% and 13%, respectively (Fig. 6B).