Table 3.

Backward stepwise multivariable logistic regression to measure the association between clinical variables and primary outcome: acute kidney injury during hospitalization. All a priori selected variables were included, but only significant variables were reported.

Variables	OR	95% CI	P-value
Serum creatinine – each mg/dL	2.4	1.4–4.2	0.002
SBPSD – each mm Hg	1.02	1.005–1.03	0.007

Hosmer-Lemeshow goodness-of-fit test: degrees of freedom = 8, χ2 value= 15.7, p > 0.05.

CI, confidence interval; mg/dL, milligrams per deciliter; mm Hg, millimeters of mercury; OR, odds ratio; SBP_SD, standard deviation in systolic blood pressure.