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Table 2 Univariate and backwards stepwise regression analyses of percentage change in renal medullary tissue oxygenation (T2* signal intensity) in response to a 20 mg intravenous furosemide stimulus

From: Chronic diuretic therapy attenuates renal BOLD magnetic resonance response to an acute furosemide stimulus

Variables Univariate Backwards stepwise regression
Parameter estimate (SE) p-value Parameter estimate (SE) p-value
Age 0.32 (0.29) 0.28   
Glomerular filtration rate 0.05 (0.11) 0.65   
Gender 2.27 (4.31) 0.61   
Ethnicity -14.4 (4.61) 0.006* -13.1 (4.09) 0.004*
Stenosis severity (%) -0.12 (0.06) 0.04* -0.11 (0.05) 0.04*
Diabetes diagnosis 0.72 (4.61) 0.88   
Body mass index -0.49 (0.33) 0.15   
Chronic daily furosemide dose (mg/day) -0.09 (0.05) 0.09 -0.11 (0.04) 0.01*
ACEI/ARB use 6.41 (4.64) 0.18   
Antihypertensive medications (number) 0.98 (1.74) 0.58