Table 2

Summary of main incidence-based mortality studies on breast cancer screening.

Study

Country

Areas in study

Age of screened women

Data on treatments in screening and non-screening areas

Comparison areas where no screening existed during the entire screening period

Historical comparison areasa

Effect of screening on the risk of BC death

Adjustment of results for:


Self-selection

Incidence

Lead time


Tabár et al. 2003 [27]

Sweden

Dalarna and Kopparberg counties

40 to 69

No

No

No

-45%

Yes

Yes

No

Olsen et al. 2005 [28]

Denmark

Copenhagen where screening took place compared to the rest of the country

50 to 69

No

Yes

Yes

-25%

No

No

No

SOSSEG 2006 [29]

Sweden

About half of Swedish counties

40(50) to 69(74)

Yes, but only in non-participants

No

No

-27%

Yes

Yes

No

Jonsson 2007 [30]

Sweden

Four Swedish counties

40 to 74

No

Yes

No

-26%

Yes

No

Yes

Anttila et al. 2008 [31]

Finland

All the country

50 to 69

No

No

No

-11%

No

No

No

Hellquist et al. 2010 [32]

Sweden

All Swedish counties

40 to 49

No

Yes

No

-26%

Yes

No

Yes

Kalager et al. 2010 [33]

Norway

Four counties with pilot program plus comparison counties

50 to 69

No

Yes

Yes

-10% (NS)

No

No

No

Olsen et al. 2012 [34]

Norway

Four counties with pilot program plus comparison counties

50 to 69

No

Yes

Yes

-7 (NS)

No

No

No


BC: breast cancer; NS: statistically non-significant. aData on breast cancer death rates in historical comparison groups, that is, in screening areas and in comparison areas before screening started in screening areas.

Autier and Boniol BMC Medicine 2012 10:163   doi:10.1186/1741-7015-10-163

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