Small Fiber Neuropathy Associated with Hyperlipidemia: Utility of Cutaneous Silent Periods and Autonomic Tests

Table 4

Mean 𝑅-𝑅 interval variation values in patients and controls.

	Patient group; (mean ± SD); (𝑛=25)	Control group; (mean ± SD); (𝑛=23)	𝑃 value
𝑅%	25.2±11.6	22.3±8.3	0.489
𝐷%	33.2±11.4	33.2±9.6	0.672
𝐷-𝑅	1.43±0.55	1.56±0.40	0.375
𝐷/𝑅	1.28±0.16	1.38±0.16	0.021

𝑅%: 𝑅-𝑅 interval variation at rest; 𝐷%: during deep breathing, 𝐷−𝑅: the difference between 𝐷% and 𝑅%; 𝐷/𝑅: the ratio of 𝐷-𝑅 %, ^∗𝑃<0.05.