Multimodal data analysis reveals that pancreatobiliary-type ampullary adenocarcinoma resembles pancreatic adenocarcinoma and differs from cholangiocarcinoma

Table 1 Results of multivariable Cox regression for overall survival

Variable	HR (95% CI)	P value
Adjuvant chemotherapy: for CHOL (vs for PAC)	7.24 (1.28–40.78)	0.025
Sex: male (vs female)	1.32 (0.36–4.76)	0.67
Histologic grade: moderately to poorly (vs moderately)	2.25 (0.43–11.90)	0.34

CHOL cholangiocarcinoma, PAC pancreatic adenocarcinoma, HR hazard ratio, CI, confidence interval

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