borderline significantp = 0.09
The Kaplan-Meier curve demonstrates a borderline significant association between higher BCR (≥23.75) and the onset of AKI in COVID-19 patients[log-rank test χ2 = 2.9, p = 0.09; hazard ratio (HR), 95% confidence interval (CI): 2.4, 0.8–6.9, p = 0.09 , Figure 2A ].