Country fact sheet: United Kingdom (Northern Ireland) Northwest Territories / (Index year: 2013)

Age group	40-44	45-49	50-54	55-59	60-64	65-69	70-74	75-79	Age unknown	Total
Interval
Screening interval (months)	0	36	36	36	36	36	0	12	12
Population (personally invited)
Target population		67 614	61 761	52 195	47 289	44 940		29 100		302 899
Annual target population		22 538	20 587	17 399	15 763	14 980		29 100		120 367
Women invited		2 153	22 134	18 737	16 430	16 728		1		76 183
Invitation coverage (%)		9.6	107.5	107.7	104.2	111.7				63.3
Examinations
Women screened		1 586	16 951	14 536	12 859	12 764				58 696
Participation rate (%)		73.7	76.6	77.6	78.3	76.3				77.0
Result (All tests in the invitation cohort)
Positive		116	847	371	345	384				2 063
Negative		1 470	16 104	14 165	12 514	12 380				56 633
Referral for further assessment (%)		7.3	5.0	2.6	2.7	3.0				3.5
Further assessment (all positive)
Done		116	842	370	345	383				2 056
Not done			5	1		1				7
Further assessment participation rate (%)		100.0	99.4	99.7	100.0	99.7				99.7
Outcome
Negative		99	750	282	253	270				1 654
Benign lesions		6	10	4	5	4				29
CIS detected		2	15	12	13	16				58
Invasive breast cancer		9	67	72	74	93				315
Other histology

Interval