Usefulness of the endoscopic surgical skill qualification system in laparoscopic colorectal surgery: short-term outcomes: a single-center and retrospective analysis

Table 1 Univariate analysis and multivariate analysis of bleeding, operation time, and conversion

Bleeding	Univariate	Multivariate	Univariate	Multivariate	Univariate	Multivariate
Age	0.176	0.08474	0.5061	0.53396	0.2371	0.00001*
Gender	0.0602	0.13326	0.0204*	0.07094	0.4712	0.00001*
ASA	0.6456	0.82847	0.1773	0.1221	0.1401	0.00001*
BMI	0.2677	0.3456	0.0773	0.02911*	0.4072	0.99985
Location	0.9927	0.48422	0.0001*	0.02309*	0.1272	0.99512
Operation	0.1728	0.07998	0.0001*	0.00001*	0.9072	0.00243*
Anastomosis	0.809	0.27839	0.0001*	0.00283*	0.0897	0.00001*
History of abdominal surgery	0.8172	0.95322	0.0844	0.05482	0.532	0.73795
NQS	0.0488*	0.08287	0.0001*	0.00001*	0.0005*	0.00001*

ISSN: 1471-2482