Stomach cancer, malignant (ICD10 C16): combined sexes

Five-year relative survival by diagnosis year and age at diagnosis

	Five-year relative survival (with 95% confidence interval) by diagnosis year				EUROCARE-4	EUROCARE-4
Age at diagnosis	1994-97	1998-2002	2003-2007	2007-2009	##2000-2002	##2000-2002
	cohort	cohort	cohort	*hybrid	Ireland	Europe average

all 15-99	17.2%	17.3%	23.9%	25.2%
(unstandardized)	(15.2-19.2%)	(15.4-19.1%)	(21.4-26.4%)	(22.3-28.0%)

all 15-99	17.4%	17.6%	23.4%	24.1%	18.8%	24.9%
(age-standardized)#	(13.2-22.2%)	(13.6-21.8%)	(18.4-28.8%)	(18.1-30.5%)	(16.5-21.5%)	(23.7-26.2%)

15-44	26.6%	28.5%	27.0%	34.6%
	(17.0-37.1%)	(19.9-37.6%)	(17.0-37.9%)	(20.9-48.6%)

45-54	19.8%	26.6%	30.6%	29.2%
	(13.7-26.7%)	(20.2-33.3%)	(23.2-38.3%)	(20.3-38.8%)

55-64	21.2%	21.3%	29.2%	28.2%
	(16.8-26.1%)	(17.3-25.5%)	(24.0-34.6%)	(22.3-34.4%)

65-74	15.1%	14.7%	19.5%	21.1%
	(12.0-18.4%)	(11.8-17.8%)	(15.4-24%)	(16.4-26.1%)

75-99	13.6%	11.1%	18.8%	19.1%
	(10.2-17.5%)	(8.4-14.3%)	(15.1-22.9%)	(14.8-24.0%)

Footnotes:

*Hybrid estimate for 2007-2009 is the most up-to-date survival estimate and is based on follow-up of all cases alive at any point during this period,

supplemented by follow-up 2005-2009 for cases diagnosed in 2005 or 2006 (to provide more reliable estimation of the first two years of survival).

In practice, the hybrid estimate for 2007-2009 is similar to the most recent (incomplete) cohort, i.e. cases diagnosed 2003-2007, reflecting substantial overlap of data.

# Age-standardized figures use the standard patient population proposed for this cancer by:

Corazziari I., Quinn M. & Capocaccia R. 2004. Standard cancer patient population for age standardising survival ratios. Eur J Cancer 40: 2307-2316.

(Population weights = age 15-44 x7000, 45-54 x12000, 55-64 x23000, 65-74 x29000, 75-99 x29000)

## For comparison, the age-standardized average survival is quoted for countries (including Ireland) that participated in the EUROCARE-4 study:

Sant M. et al. 2009. EUROCARE-4. Survival of cancer patients diagnosed in 1995-1999. Results and commentary. Eur J Cancer 45: 931-991.

Exclusions (as in EUROCARE):

Patients aged <15 or >99 at diagnosis; death-certificate-only (DCO) and autopsy-only cases; second or subsequent malignancies in the same patient

(or the less serious of two or more synchronously-diagnosed malignancies); in situ carcinomas and tumours of uncertain behaviour.