The Resistive Index Is a Marker of Renal Function, Pathology, Prognosis, and Responsiveness to Steroid Therapy in Chronic Kidney Disease Patients

Table 1

The correlation coefficients of ultrasonographic measurements with the clinical and histological parameters by univariate analysis (𝑛=202).

	Resistive index	Renal length	Cortex area
Age	0.45^∗∗	−0.17^∗	−0.12
Systolic blood pressure	0.33^∗∗	−0.02	0.03
Urinary protein level	0.10	0.06	0.10
Serum creatinine level	0.46^∗∗	−0.12	−0.12
eGFR	−0.52^∗∗	0.23^∗∗	0.20^∗∗
Glomerulosclerosis score	0.32^∗∗	−0.24^∗∗	−0.21^∗∗
Arteriolosclerosis score	0.36^∗∗	−0.15^∗	−0.06
Tubulointerstitial damage score	0.43^∗∗	−0.16^∗	−0.15^∗
CKD stage	0.50^∗∗	−0.26^∗∗	−0.22^∗∗

* P < 0.05, **P < 0.01.