Table 3.

Multivariate logistic regression differentiating odd ratio relevant to low achievement of critical view of safety (CVS).

Variables/factors	CVS scoring ≤2 points (low achievement)			CVS scoring 3 or 4 points (medium achievement)
	B	Wald χ2 statistic	OR (95% CI)	B	Wald χ2 statistic	OR (95% CI)
Unconventional surgical workflow in daily practice	2.515	12.214	12.372 (3.018–50.711)***	1.084	2.471	2.957 (0.765–11.428)
Misunderstanding of the 3rd criterion of CVS	2.105	4.982	8.206 (1.293–52.097)*	0.981	1.142	2.667 (0.441–16.124)
Misunderstanding of the 2nd criterion of CVS	2.188	6.395	8.917 (1.636–48.601)*	2.283	7.817	9.811 (1.979–48.629)**
Not mistaken “fundus-first technique for hepatocystic triangle in obscure” as one of the CVS criteria	−2.093	9.437	0.123 (0.032–0.469)**	−1.577	6.335	0.207 (0.061–0.705)*

^*P < 0.05.

^**P < 0.01.

^***P < 0.001.

Reference outcome: CVS achieved.

Reference variables/factors: Conventional surgical workflow: “MHT→Dissect lower 1/3 of the liver bed→Cut cystic duct and artery → Dissect gallbladder from liver bed”, correctly regarding C3 as one of the CVS criteria, correctly regarding C2 as one of the CVS criteria, Not taking the “fundus-first technique for hepatocystic triangle in obscure” as one of the CVS criteria. C2 and C3 refer to the 2nd and 3rd criteria of CVS.

CI, coefficient interval; CVS: critical view of safety; OR: odds ratio.