IGFBP7 and acute kidney injury: Urinary IGFBP-7 levels ≥0.906 ng/ml and the occurrence of AKI in septic patients also showed a significant relationship where septic patients with IGFBP-7 levels ≥0.906 ng/ml have a higher risk of AKI than those with urine IGFBP-7 <0.906 ng/ml (Table 3).