Is Nighttime Really Not the Right Time for a Laparoscopic Cholecystectomy?

Table 5

Uni- and multivariate analyses assessing the association between different factors and postoperative morbidity after laparoscopic cholecystectomy.

Prognostic Factor	Univariate		Multivariate
	OR [95-CI]	p-value	OR [95-CI]	p-value
Gender, male	1.07 [0.78-1.46]	0.69
Age	1.01 [0.99-1.02]	0.10
Out-of-hours	1.83 [1.17-2.85]	0.008	0.74 [0.35-1.57]	0.43
Timing, acute	1.59 [1.09-2.33]	0.018	1.82 [0.95-3.45]	0.069
Prior abdominal surgery	1.24 [0.88-1.75]	0.40
Operation by surgical staff	1.92 [1.41-2.60]	<0.001	1.71 [1.24-2.36]	0.001
Bile spill	1.07 [0.78-1.47]	0.68
Conversion to laparotomy	4.70 [2.47-8.92]	<0.001	3.74 [1.93-7.24]	<0.001