Table 2.

Survival analysis for patients with NETs diagnosed from 1973 to 2014

Variables	Median survival (months)	Survival rate (%)
		1 year	3 years	5 years	10 years
All patients	41	72.8	52.7	39.4	18.1
Sex
Male	36	70.7	50.4	37.3	16.9
Female	45	75.8	55.5	41.9	19.5
Year
1973–1986	98	80.1	67.2	59.6	46.0
1987–2000	91	78.2	65.6	57.8	44.5
2001–2014	34	71.8	49.3	34.2	10.4
Age, years
<50	72	84.6	67.9	55.3	32.1
50–65	49	77.9	58.1	44.1	20.4
>65	26	64.9	42.8	29.5	10.7
Race
White	40	73.0	52.8	39.6	18.3
Black	41	74.7	53.6	39.1	17.2
Other	44.5	75.1	55.7	42.0	20.2
Marital status
Married	46	76.3	56.3	42.9	20.5
Unmarried	33	68.7	47.9	34.6	14.7
Grade
Good	32	75.8	45.8	26.1	6.7
Moderate	29	72.6	43.3	26.2	9.2
Poor	8	40.8	16.9	10.7	3.8
Undifferentiated	8	36.9	13.5	8.7	3.5
Unknown	61	78.3	63.0	50.9	25.7
Stage
Localized	54	83.8	63.0	46.7	18.1
Regional	40	77.5	53.7	36.8	12.5
Distant	10	46.0	23.5	14.2	3.8
Unknown	77	79.0	65.2	55.8	39.0
Surgery
Yes	52	82.7	61.4	44.7	16.9
No	11	49.0	26.4	16.8	5.0
Unknown	93	79.9	66.9	59.0	44.6
Radiation
Yes	11	47.9	18.9	10.8	3.8
No	45	75.5	55.9	42.1	19.5
Chemotherapy
Yes	12	52.0	22.4	12.8	3.9
No	50	77.2	58.6	44.5	20.8
Primary site
Colon	41	72.3	53.3	40.9	20.5
Lung and bronchus	25	63.9	44.1	33.7	17.3
Small intestine	51	81.3	60.6	44.2	17.9
Pancreas	22	65.1	36.9	22.7	7.3
Stomach	41	74.7	53.7	38.3	15.8
Rectum	70	86.5	70.3	55.7	27.1

Notes: Bold indicates level of statistical significance at a=0.05.

Abbreviation: NETs, neuroendocrine tumors.