. Author manuscript; available in PMC: 2017 Jun 1.

Published in final edited form as: Graefes Arch Clin Exp Ophthalmol. 2015 Sep 15;254(6):1075–1081. doi: 10.1007/s00417-015-3166-0

Table 2.

Descriptive characteristics of the “short” and “long” segment methods groups.

	Short segments	Long segments	p
Arterial velocity (mm/s)	3.93 (0.55)	4.45 (0.76)	*0.036*
Arterial segments (n)	13.7 (2.8)	12.8 (3.4)	NS
Acceptable arterial segments (%)	58.6 (15.0)	82.3 (9.9)	*0.004*
Venous velocity (mm/s)	195 (0.56}	3.17 (0.84)	NS
Venous segments (n)	14.9 (2.3)	13.9 (2.9)	NS
Acceptable venous segments (%)	68.8 (19.7)	88.7 (11.1)	*0.014*
Total segments (n)	28.6 (2.63)	26.7 (4.55)	NS
Acceptable vessel segments in total (%)	65.2 (11.4)	85.2 (5.87)	*0.001*
Coefficients of variability (all segments in group) (%)	0.40 (0.21)	0.29 (0.18)	*0.000*

Values are means (standard deviation). NS: not significant.