Focus at the time of the first renal evaluation of proximal tubule injury. (A) The trend of number of attacks compatible with tubular proximal diagnosis was significantly different between ICU patients and other inpatients (P = 0.038). The dotted red line defines the diagnosis of proximal tubulopathy. (B) Excluding the two patients with nephrotic-range proteinuria in the ICU, the proteinuria/creatininuria value was significantly more important in ICU patients versus other inpatients (P < 0.0001).