Establishment of risk model for pancreatic cancer in Chinese Han population

Table 5 Clinical symptoms of patients and controls

Symptom	Symptom duration (mo)a	Patients				Controls				P
		n	Yes	No	Not stated	n	Yes	No	Not stated
Anorexia	2	118	45.8	54.2	0	203	0.5	99.5	0	<0.0001
Epigastric pain	3	119	60.5	38.7	0.8	181	2.2	97.8	0	<0.0001
Backache	2	119	32.8	66.4	0.8	205	2.0	98.1	0	<0.0001
Hypogastralgia	3	119	16.0	82.4	1.7	205	3.4	96.6	0	<0.0001
Abdominal pain	2	119	38.7	61.3	0	205	4.9	95.1	0	<0.0001
Jaundice	1	119	42.0	58.0	0	205	0.5	99.5	0	<0.0001
Skin itch	1	119	13.5	86.6	0	205	8.7	91.3	0	0.0032
Weight loss	3	119	76.5	22.7	0.8	205	2.4	97.6	0	<0.0001