Table 6.

The association between calculated threshold of main pancreatic duct (MPD) and malignancy in body-tail MPD-involved intraductal papillary mucinous neoplasms (IPMNs)

	Univariate analysis		Multivariate analysis
	OR	P value	OR	P value
MPD diameter (≥ 7.7 mm vs. < 7.7 mm)	4.71 (0.73–30.28)	0.102	8.78 (0.84–91.49)	0.07
Size (≥ 30 mm vs. < 30 mm)	0.60 (0.08–4.54)	0.621	0.24 (0.02–3.42)	0.27
CEA (≥ 5 vs. < 5 ng/ml)	0.71 (0.06–8.15)	0.79	0.52(0.04–7.23)	0.62

CA19-9 carbohydrate antigen 19-9, CEA carcinoembryonic antigen, OR odds ratio

Ca19-9 levels and presence of mural nodule were not included in the analysis because there were no cases with high CA19-9 (> 37 U/L) and presence of mural nodule in low-intermediate grade group. Then CEA was included in the models–