A Comparative Assessment of Cardiovascular Autonomic Reflex Testing and Cardiac ¹²³I-Metaiodobenzylguanidine Imaging in Patients with Type 1 Diabetes Mellitus without Complications or Cardiovascular Risk Factors

Table 3

Comparison of cardiac sympathetic innervation imaging with ¹²³I-metaiodobenzylguanidine (¹²³I-MIBG) findings between groups of patients formed according to the number of abnormal cardiovascular autonomic tests (CARTs) versus those with fewer tests than the defined threshold of abnormality.

Number of abnormal CARTs	^123I-MIBG H/M_4
	Abnormal group	Normal group
≥1	1.61 ± 0.22	1.68 ± 0.17	0.234
	()	()
≥2	1.52 ± 0.14	1.68 ± 0.21	0.014
	()	()
≥3	1.53 ± 0.09	1.66 ± 0.21	0.104
	()	()
≥4	1.62 ± 0.11	1.64 ± 0.21	0.916
	()	()