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Monthly variation in mammographic screening attendance in Norway
Kaitlyn M Tsuruda1, Sameer Bhargava1,2, Gunhild Mangerud1
1Department of Breast Cancer Screening, Cancer Registry of Norway, Institute of Population-based Cancer Research, Oslo, Norway.
Abstract:
Breast Cancer Awareness Month (BCAM) increases screening attendance in the USA. However, this effect has not been investigated in Europe, where organized screening is widespread. We examined monthly attendance within the Norwegian Breast Cancer Screening Programme, 2005-15. Relative to October, the odds of attending screening in January, February, March, August, September or December were slightly decreased (ORadj 0.93-0.98, P ≤ 0.003 for all). BCAM may marginally increase attendance in October but seasonal factors such as weather may also explain this observed variation. Furthermore, it is possible that organized screening with predetermined appointments evens out the effect BCAM has on screening attendance.