TABLE 2.

Amount of radiocontrast used and fluoroscopy time in investigated groups

Paremeters:		Stenting method
		DS n = 35	SWP n = 35	p
Fluoroscopy time	s	204.1 ± 98.46	392.8 ± 207.7	‡*0.0001
Radiocontrast	ml	280 (100 – 350)	350 (200 – 400)	⋄0.0001

Legend: s-second, ml-millilitre; DS – direct stenting; SWP – stenting with predilatation;

^‡*Student T-test (df 68, test statistic 4.85, p < 0.0001);

^⋄Mann-Whitney test (Large sample test statistic Z −4.58; p < 0.0001).