Diagnosis of pancreatic tumors by endoscopic ultrasound-guided fine-needle aspiration

Table 4 Sensitivity, specificity, positive and negative predictive values and accuracy of EUS-FNA in the diagnosis of pancreatic tumors

	General(n = 611)		Solid tumors≥3 cm(n = 225)		Solid tumors < 3 cm(n = 180)		Cystic lesions(n = 206)
	%	95% CI	%	95% CI	%	95% CI	%	95% CI
Sensitivity	78.4	74.1-82.8	78.8	72.8-84.8	82.4	75.5-89.2	72.2	60.3-84.2
Specificity	99.2	98.1-100	100	100-100	98.4	95.2-100	99.3	98.1-100
PPV	99.3	98.2-100	100	100-100	99.0	97-100	97.5	92.7-100
NPV	77.2	72.6-81.7	54.8	44.1-65.4	74.1	64.5-83.6	91.0	86.6-95.3
Accuracy	87.2	84.5-89.9	83.1	78.2-88	87.8	83-92.6	92.2	88.6-95.9