ArticleActa radiologica short reports2014
Comparison of Danish dichotomous and BI-RADS classifications of mammographic density.
Article in Acta radiologica short reports, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers, 1 of them a synthesis that pooled it.
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Who cites it
7 citing papers in PubMed, 1 synthesis or guideline pooled it, 12 citations in OpenAlex.
- Hormone replacement therapy and mammographic density: a systematic literature review.Breast cancer research and treatment · 2020Pooled it
- Mammographic Density and Screening Sensitivity, Breast Cancer Incidence and Associated Risk Factors in Danish Breast Cancer Screening.Journal of clinical medicine · 2019Article
- A review of the influence of mammographic density on breast cancer clinical and pathological phenotype.Breast cancer research and treatment · 2019Review
- Regular physical activity and mammographic density: a cohort study.Cancer causes & control : CCC · 2018Article
- Hormone replacement therapy, mammographic density, and breast cancer risk: a cohort study.Cancer causes & control : CCC · 2018Article
- Diabetes, diabetes treatment, and mammographic density in Danish Diet, Cancer, and Health cohort.Cancer causes & control : CCC · 2017Article
- Long-term exposure to air pollution and mammographic density in the Danish Diet, Cancer and Health cohort.Environmental health : a global access science source · 2015Article
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Authors and funding
5 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundIn the Copenhagen mammography screening program from 1991 to 2001, mammographic density was classified either as fatty or mixed/dense. This dichotomous mammographic density classification system is unique internationally, and has not been validated before. PURPOSE: To compare the Danish dichotomous mammographic density classification system from 1991 to 2001 with the density BI-RADS classifications, in an attempt to validate the Danish classification system. MATERIAL AND
methodsThe study sample consisted of 120 mammograms taken in Copenhagen in 1991-2001, which tested false positive, and which were in 2012 re-assessed and classified according to the BI-RADS classification system. We calculated inter-rater agreement between the Danish dichotomous mammographic classification as fatty or mixed/dense and the four-level BI-RADS classification by the linear weighted Kappa statistic.
resultsOf the 120 women, 32 (26.7%) were classified as having fatty and 88 (73.3%) as mixed/dense mammographic density, according to Danish dichotomous classification. According to BI-RADS density classification, 12 (10.0%) women were classified as having predominantly fatty (BI-RADS code 1), 46 (38.3%) as having scattered fibroglandular (BI-RADS code 2), 57 (47.5%) as having heterogeneously dense (BI-RADS 3), and five (4.2%) as having extremely dense (BI-RADS code 4) mammographic density. The inter-rater variability assessed by weighted kappa statistic showed a substantial agreement (0.75).
conclusionThe dichotomous mammographic density classification system utilized in early years of Copenhagen's mammographic screening program (1991-2001) agreed well with the BI-RADS density classification system.
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