Mammographic screening in Sami speaking municipalities and a control group. Are early outcome measures influenced by ethnicity?
Permanent link
https://hdl.handle.net/10037/25052Date
2012-04-16Type
Journal articleTidsskriftartikkel
Peer reviewed
Author
Norum, Jan; Hofvind, Solveig; Nieder, Carsten; Schnell, Edrun Andrea; Broderstad, Ann RagnhildAbstract
Study design. A retrospective registry-based study.
Methods. The 8 municipalities included in the administration area of the Sami language law (Sami) were matched with a control group of 11 municipalities (non-Sami). Population data were accessed from Statistics Norway. Data regarding invitations and outcome in the NBCSP during the period 2001 2010 was derived from the Cancer Registry of Norway (CRN). The NBCSP targets women aged 50 69 years. Rates and percentages were compared using chi-square test with a p-valueB0.05 as statistical significant.
Results. The attendance rate in the NBCSP was 78% in the Sami and 75% in the non-Sami population (pB0.01). The recall rates were 2.4 and 3.3% in the Sami and non-Sami population, respectively (pB0.01). The rate of invasive screen detected cancer was not significantly lower in the Sami group (p0.14). The percentage of all breast cancers detected in the NBCSP among the Sami (67%) was lower compared with the non-Sami population (86%, p0.06).
Conclusion. Despite a lower risk of breast cancer, the Sami attended the NBCSP more frequently than the control group. The recall and cancer detection rate was lower among the Sami compared with the non-Sami group.