TABLE 4.

cLDF and qLDF velocity estimates at baseline and at the plateau

LDF	Time	Fiber separation/velocity	Control subjects	Diabetic patients
n			23	23
c	B	0.25 mm separation	78 ± 20	84 ± 26¶
c	B	1.2 mm separation	288 ± 110	313 ± 66¶
q	B	All v	0.83 ± 0.40	0.94 ± 0.37¶
c	Pl	0.25 mm separation	627 ± 317	461 ± 165*
c	Pl	1.2 mm separation	1,925 ± 629	1,558 ± 438*
q	Pl	All v	9.7 ± 4.7	7.3 ± 3.9*

Data are means ± SD. cLDF was measured using 0.25- and 1.2 mm fiber separations. qLDF was measured in different velocity regions. B, baseline, median over first 5 min; c, conventional, arbitrary units; q, mm/s; Pl, plateau, median over last 5 min.

¶The baseline measurements were excluded for three diabetic patients because of too short acclimatization. Statistical comparisons of diabetic patients vs. normal control subjects:

*P < 0.05.