Figure 1.

Urinary neutrophil gelatinase-associated lipocalin (NGAL) level in ICU patients with coronavirus disease 2019 associated with acute kidney injury (AKI) diagnosis and length of mechanical ventilation. Those who developed AKI (n = 10) manifested significantly higher urinary NGAL level at admission than those without AKI (n = 7) (93.0 vs 26.6 ng/mL; p = 0.019) (A). Lengths of mechanical ventilation are presented against maximum urinary NGAL level acquired within 48 hr from ICU admission in eight patients who required ventilator during ICU stay (B, except one dead patient). There was a significant positive correlation (p < 0.01) with coefficient of determination (R²) of 0.78. NGAL levels were illustrated with logarithmic scale. *p < 0.05.