5.

Distribution of primary sites of gastrointestinal stromal tumor by sex in China, 2014

ICD-O-3 code	Primary sites	Gender			Proportion (%)
		Male, n	Female, n	Total, n
C15	Esophagus	6	3	9	0.74
C16	Stomach	444	379	823	67.51
C17	Small intestine	141	114	255	20.92
C18	Colon	10	9	19	1.56
C20	Rectum	26	12	38	3.12
C21	Anus and anal canal	1	0	1	0.08
C25	Pancreas	1	0	1	0.08
C26	Other digestive organs	29	27	56	4.59
C34	Bronchus and lung	0	1	1	0.08
C48	Retroperitoneum and peritoneum	5	1	6	0.49
C49	Connective, subcutaneous and other soft tissues	2	0	2	0.16
C73	Thyroid gland	1	0	1	0.08
C76	Other and ill-defined sites	3	3	6	0.49
C80	Unknown primary site	0	1	1	0.08
Total		669	550	1,219	100.00