Table 3.

Categorization of VPT data (µm) by DM duration (years).

	DM Duration		n	Heel 200 Hz	MTH1 200 Hz	Heel 30 Hz	MTH1 30 Hz
DM and DPN groups	A	≤4	7	0.9 [0.8–2.9]	[0.6–3.0]	14.9 [10.2–43.7]	8.2 [5.9–13.7]
	B	>4 ≤ 8	4	5.4 [1.9–9.7]	6.6 [0.9–13.1]	55.9 [44.5–69.2]	27.5 [17.7–43.7]
	C	>8	22	4.7 [1.2–25.2]	12.5 [1.3–35.2]	54.2 [25.1–108.5]	35.3 [15.8–128.4]
CG		-	33	2.0 [0.6–5.9]	1.9 [0.4–8.6]	15.4 [7.3–31.3]	10.7 [4.9–19.9]

VPT data are represented as median and interquartile range and mean and standard deviation. Paré et al. [12] categories A, B, and C. Control group (CG); combined DM groups, consisting of DM and DPN groups together. MTH1, first metatarsal head.