Leukaemia (ICD10 C91-C95): 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	##1995-1999	##1995-1999
	cohort	cohort	cohort	*hybrid	Ireland	Europe average

all 15-99	47.3%	53.3%	59.4%	59.8%
(unstandardized)	(43.8-50.6%)	(50.4-56.0%)	(56.0-62.7%)	(56.2-63.1%)

all 15-99	46.6%	51.7%	56.2%	57.2%	45.5%	42.4%
(age-standardized)#	(39.3-53.7%)	(45.6-57.4%)	(49.2-62.8%)	(49.8-63.9%)	(42.4-48.8%)	(41.7-43.2%)

15-44	52.6%	61.3%	74.2%	77.5%
	(44.8-59.7%)	(54.6-67.2%)	(66.0-80.6%)	(69.4-83.8%)

45-54	53.3%	62.1%	69.8%	71.6%
	(43.8-61.9%)	(54.8-68.6%)	(61.4-76.6%)	(62.5-79.0%)

55-64	53.9%	59.4%	69.9%	69.8%
	(46.2-61%)	(53.5-64.8%)	(63.3-75.7%)	(62.6-75.9%)

65-74	42.0%	47.1%	56.2%	55.1%
	(36.1-48%)	(41.7-52.2%)	(49.8-62.2%)	(48.3-61.5%)

75-99	41.1%	43.5%	35.4%	38.4%
	(33.7-48.8%)	(37.3-49.8%)	(28.3-43.0%)	(31.2-45.8%)

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 2005-2006 (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.