Accuracy of an administrative database for pancreatic cancer by international classification of disease 10th codes: A retrospective large-cohort study

Table 3 Characteristics of patients with pancreatic cancer according to the international classification of diseases, 10^th revision edition

Parameters	N (%)	C250	C251	C252	C253	C254	C257	C259
Number of patients	1846	234 (12.7)2	72 (3.9)	104 (5.6)	5 (0.3)	2 (0.1)	1 (0.1)	1428 (77.4)
Age at diagnosis	65.22 ± 11.971	64.72 ± 10.14	63.39 ± 10.48	65.43 ± 11.32	65.20 ± 11.08	70.50 ± 4.95	45.00 ± 0.00	65.39 ± 12.35
Gender (male: Female)	1116:730	150:84	45:27	52:52	1:4	2:0	1:0	865:563
Diagnostic criteria
Definite	910 (49.3)	164 (70.1)	34 (47.2)	45 (43.3)	2 (40.0)	2 (100.0)	1 (100.0)	662 (46.4)
Possible	936 (50.7)	70 (29.9)	38 (52.8)	59 (56.7)	3 (60.0)	0 (0.0)	0 (0.0)	766 (53.6)
Methods of pathologic diagnosis (n = 910)
ERCP or endoscopy	163 (17.9)	34 (20.7)	2 (5.9)	8 (17.8)	0 (0.0)	0 (0.0)	0 (0.0)	119 (18.0)
EUS-FNA or percutaneous biopsy	30 (3.3)	4 (2.4)	0 (0.0)	2 (4.4)	0 (0.0)	0 (0.0)	0 (0.0)	26 (3.9)
Surgery	717 (78.8)	126 (76.8)	32 (94.1)	35 (77.8)	2 (100.0)	2 (100.0)	1 (100.0)	517 (78.1)
CA19-9 > 100 U/L
Yes	684 (37.1)	95 (40.6)	29 (40.3)	44 (42.3)	1 (20.0)	0 (0.0)	0 (0.0)	515 (36.1)
No	514 (27.8)	63 (26.9)	24 (33.3)	23 (22.1)	1 (20.0)	1 (50.0)	0 (0.0)	402 (28.2)
Missing	648 (35.1)	76 (32.5)	19 (26.4)	37 (35.6)	3 (60.0)	1 (50.0)	1 (100.0)	511 (35.8)

¹Median ± standard deviation.

²Number (%).