Table 2.

Variables considered in the learning curve assessment

First authors, year
	Operator experience	Pre‐operative data	Bile duct injuries	Operative time	Complications rate	Conversion rate	Postoperative stay	Mortality	Readmission
Jung, 2020 13	x	x	x	x	x	x	x	x	n/a
Jung, 2016 9	x	x	x	x	x	x	x	n/a	n/a
Pariani, 2014 11	x	x	x	x	x	x	x	n/a	n/a
Ali, 2012 12	x	n/a	x	x	x	x	x	x	n/a
Salim, 2010 15	n/a	n/a	n/a	n/a	x	x	n/a	n/a	n/a
Voitk, 2001 16	n/a	n/a	n/a	x	x	x	n/a	n/a	x
Böckler, 1999 10	x	n/a	x	x	x	x	x	n/a	n/a
Moore, 1995 17	n/a	n/a	x	n/a	n/a	n/a	n/a	n/a	n/a
Davidoff, 1991 14	n/a	n/a	x	n/a	x	x	n/a	n/a	n/a

n/a, not available data; x, reported data.