Table 4.

Senstivity and specificity of carcinoembryonic antigen (CEA) for pancreatic ductal adenocarcinoma (PDAC)

	PDAC	Chronic pancreatitis	IPMN	Noncancer
Objective number	53	22	23	102
Result
Positive	22 (41.5%)	9 (40.9%)	2 (8.7%)	4 (3.9%)
Negative	31 (58.5%)	13 (59.1%)	21 (91.3%)	98 (96.1%)
Sensitivity
Point estimation	41.5%	—	—	—
95% CI	28.1%‐55.9%	—	—	—
Specificity
Point estimation	—	59.1%	91.3%	96.1%
95% CI	—	36.4%‐79.3%	72.0%‐98.9%	90.3%‐98.9%

—, not applicable; CI, confidence interval; IPMN, intraductal papillary mucinous neoplasm.