Table 2.

Difference and Complications During First Access Among the 2 Groups

Variables	DOE Group (n = 108)	OL Access Group (n = 116)	P Value
Duration of entry, mean ± SD, s	71.9 ± 3.7	215.1 ± 6.2	P < .0001a
Blood loss, mean ± SD, ml	9.7 ± 6.1	12.2 ± 2.9	P < .01b
Major vascular injuries	0	0	—
Minor vascular injuries	0	4	P = .0515c
Minor bowel injuries	0	3	P = .0925c

^aFor statistical analysis, unpaired t test with Welch correction was used.

^bFor statistical analysis, unpaired Student t test was used.

^cFor statistical analysis, Fisher exact test was used.

Abbreviations as in Table 1.