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		p
	Abnormal group	Normal group
≥1	1.61 ± 0.22	1.68 ± 0.17	0.234
	(n = 29)	(n = 20)
≥2	1.52 ± 0.14	1.68 ± 0.21	0.014
	(n = 13)	(n = 36)
≥3	1.53 ± 0.09	1.66 ± 0.21	0.104
	(n = 8)	(n = 41)
≥4	1.62 ± 0.11	1.64 ± 0.21	0.916
	(n = 2)	(n = 47)