Nailfold capillary microscopy for evaluating hand-arm vibration syndrome

Table 3 Descriptive factors of the observed capillaries (non-VWF vs. VWF)

Microscopic findings		Non-VWF (n = 44)	VWF (n = 18)	pvalue*	Adjustedpvalue^†
	Afferent 1	15.14 ± 3.70	15.61 ± 4.02	0.663	0.591
	Afferent 2	14.59 ± 3.59	14.39 ± 4.01	0.847	0.819
Afferent	Afferent 3	13.65 ± 3.99	13.67 ± 2.75	0.990	0.625
	Afferent mean	14.46 ± 3.09	14.55 ± 3.00	0.915	0.952
	Afferent maximum	16.77 ± 3.80	16.80 ± 4.12	0.977	0.973
	Top 1	17.41 ± 4.86	19.60 ± 5.14	0.119	0.891
	Top 2	17.42 ± 4.28	17.58 ± 3.31	0.888	0.992
Top	Top 3	16.25 ± 4.76	16.36 ± 4.71	0.934	0.909
	Top mean	17.03 ± 3.75	17.85 ± 3.32	0.424	0.982
	Top maximum	19.71 ± 5.07	21.00 ± 4.84	0.363	0.875
	Venous 1	20.43 ± 6.73	19.63 ± 4.94	0.650	0.478
	Venous 2	18.14 ± 3.95	17.40 ± 5.21	0.545	0.505
Venous	Venous 3	17.65 ± 5.67	17.51 ± 4.16	0.924	0.383
	Venous mean	18.74 ± 4.60	18.18 ± 4.29	0.659	0.379
	Venous maximum	21.81 ± 6.42	20.59 ± 4.85	0.471	0.293
	Total width 1	52.48 ± 13.26	50.41 ± 12.02	0.569	0.623
	Total width 2	48.11 ± 9.64	49.89 ± 13.67	0.621	0.308
Total width	Total width 3	47.65 ± 13.42	45.39 ± 8.09	0.419	0.356
	Total width mean	49.41 ± 10.37	48.56 ± 9.46	0.764	0.345
	Total width maximum	56.28 ± 13.21	55.69 ± 12.36	0.872	0.355
	Length 1	341.32 ± 122.35	392.45 ± 149.93	0.167	0.996
	Length 2	321.50 ± 129.00	384.07 ± 176.19	0.126	0.256
Length	Length 3	334.75 ± 129.55	343.87 ± 173.84	0.821	0.116
	Length mean	332.52 ± 112.75	373.46 ± 152.51	0.248	0.848
	Length maximum	389.61 ± 138.84	445.69 ± 151.15	0.164	0.587

Unit: μm.
*t test.
^†Adjusted for age, smoking status, and diseases using analysis of covariance.
Abbreviations: Non-VWF non- vibration-induced white finger, VWF vibration-induced white finger.

ISSN: 2052-4374