Overdiagnosis in the population-based organized breast cancer screening program estimated by a non-homogeneous multi-state model: a cohort study using individual data with long-term follow-up

Table 1 Number of women invited and screened, participation rate, number of women recalled for further assessment, and recall rate by year of invitation in Stockholm breast cancer screening

Year	Women invited	Women screened	Participation rate (%)	Women recalled	Recall rate (%)
1989	32,401	23,133	71.4	637	2.75
1990	77,740	56,488	72.7	1736	3.07
1991	84,267	58,426	69.3	1448	2.48
1992	74,665	56,090	75.1	1239	2.21
1993	78,040	58,132	74.5	1279	2.20
1994	83,156	61,285	73.7	1371	2.24
1995	82,260	59,078	71.8	1275	2.16
1996	84,562	62,809	74.3	1385	2.21
1997	87,438	65,069	74.4	1614	2.48
1998	91,229	68,682	75.3	1657	2.41
1999	93,754	63,080	67.3	1587	2.52
2000	83,434	59,840	71.7	1615	2.70
2001	95,640	65,633	68.6	1814	2.76
2002	94,055	67,457	71.7	1852	2.75
2003	87,530	61,430	70.2	1808	2.94
2004	99,012	70,921	71.6	2341	3.30
2005	99,433	70,759	71.2	1998	2.82
2006	95,875	69,931	72.9	1762	2.52
2007	96,134	69,973	72.8	1797	2.57
2008	102,561	75,930	74.0	1717	2.26
2009	110,306	79,953	72.5	1612	2.02
2010	96,693	70,204	72.6	1504	2.14
2011	95,281	69,391	72.8	1465	2.11
2012	109,052	81,949	75.1	1799	2.20
2013	104,149	78,349	75.2	1852*	2.36*
2014	94,486	71,880	76.1	1857*	2.58*
Total	2,333,153	1,695,872	72.7	42021*	2.48*

ISSN: 1465-542X