Impact of blood glucose levels on the accuracy of urinary N-acety-β-D-glucosaminidase for acute kidney injury detection in critically ill adults: a multicenter, prospective, observational study

Table 2 Factors associated with uNAG by bivariate correlation analysis

Variables	uNAG
Variables	R	P
Scr at admission (mg/dl)	−0.079	0.003
Baseline Scr (mg/dl)	−0.158	< 0.001
ΔScr (mg/dl)	0.087	0.001
Age (years)	0.295	< 0.001
Diabetes mellitus	0.124	< 0.001
Serum glucose at admission (mg/dl)	0.196	< 0.001
HbA1c at admission (%)	0.147	< 0.001
APACHE II score	0.055	0.036

uNAG urinary N-acetyl-glucosaminidase, Scr serum creatinine concentration, ΔScr the change between admission Scr and baseline Scr, HbA1c glycosylated hemoglobin, APACHE II Acute Physiology and Chronic Health Evaluation score

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