Table 2.

Cholecystectomy comparative studies.

FIRST AUTHOR	PHILIPP, S.R.		TSIMOYIANNIS, E.C.
YEAR	2009		2010
INTERVENTION	CLS	LESS	CLS	LESS
Patients	22	29	20	20
Operative time (min)	67a	85a	37.2 ± 9.16	49.65 ± 9.02
Length of stay (days)	0a	0a	1.10 ± 0.44	1.25 ± 0.44
Complications	13.6%	24.1%	11.1%	5.26%
Estimated blood loss (mL)	15a	15a	8.50 ± 6.30	9.90 ± 14.38
Postoperative pain VAS	2a	4a	0.85 ± 0.67	0.05* ± 0.22

Note: Mean ± standard deviation.

^aMedian.