Table 2.

Cox regression of tumor budding for pancreatic ductal adenocarcinoma.

Variable	Estimate	HR (95% CI)	p-value
TB at the tumor front	0.7804	2.1823 (0.9706–4.9070)	0.0591
TB in the tumor center	0.3769	1.4577 (0.6257–3.3961)	0.3824
TB both at the tumor front and in the tumor center	0.4826	1.6202 (0.7828–3.3535)	0.1935
TB count	0.0083	1.0084 (0.9889–1.0283)	0.4035

TB score = 0.7804 × (budding location = PTB) + 0.37688 × (budding location = ITB) + 0.48256 × (budding location = TTB) + 0.00833 × budding count.

HR, hazard ratio; CI, confidence interval; TB, tumor budding.