Table 3.

Comparison of magnetic resonance imaging measures by diabetes status

	CKD/Control	n	Mean	SD	Pa	Mean difference (confidence interval)
Oxygenation
R2*_Cortex (s−1)	Diabetes	61	20.55	3.00	0.99	0.007 (−1.106 to 1.118)
	No diabetes	62	20.54	3.23
R2*_Medulla (s−1)	Diabetes	60	24.13	3.32	0.21	0.745 (−0.412 to 1.901)
	No diabetes	61	23.38	3.10
R2*_Kidney (s−1)	Diabetes	61	21.61	2.62	0.78	0.143 (−0.846 to 1.132)
	No diabetes	62	21.46	2.92
R2*_MC ratio	Diabetes	60	1.19	0.17	0.11	0.043 (−0.010 to 0.097)
	No diabetes	61	1.15	0.13
Response to furosemide
ΔR2*_Cortex (s−1)	Diabetes	17	0.78	1.178	0.634	0.156 (−0.510 to 0.822)
	No diabetes	37	0.93	0.958
ΔR2*_Medulla (s−1)	Diabetes	17	1.76	1.47	0.054	1.137 (−0.022 to 2.296)
	No diabetes	37	2.90	2.76
ΔR2*_Kidney (s−1)	Diabetes	17	0.96	0.93	0.439	0.208 (−0.335 to 0.751)
	No diabetes	37	1.17	0.84
Fibrosis
ADC	Diabetes	63	1.40a	0.15	< 0.02	0.097 (0.038 to 0.156)
(× 10–3 mm2/s)	No diabetes	63	1.50	0.19

ADC, apparent diffusion coefficient; CKD, chronic kidney disease.

Bold values indicate P < 0.05.

^aP < 0.05 by Student 2-tailed t test.