Sökning: L773:0020 7136 OR L773:1097 0215 >
Longitudinal fluctu...
Longitudinal fluctuation in mammographic percent density differentiates between interval and screen-detected breast cancer
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- Strand, Fredrik (författare)
- Karolinska Institutet
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- Humphreys, Keith (författare)
- Karolinska Institutet
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- Eriksson, Mikael (författare)
- Karolinska Institutet
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Li, Jingmei (författare)
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- Andersson, Therese M L (författare)
- Karolinska Institutet
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- Törnberg, Sven (författare)
- Karolinska Institutet
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Azavedo, Edward (författare)
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Shepherd, John (författare)
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- Hall, Per (författare)
- Karolinska Institutet
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- Czene, Kamila (författare)
- Karolinska Institutet
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- ISSN 0020-7136
- 2016-09-24
- 2016
- Engelska.
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Ingår i: International Journal of Cancer. - Stockholm : Karolinska Institutet, Dept of Medical Epidemiology and Biostatistics. - 0020-7136 .- 1097-0215.
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Abstract
Ämnesord
Stäng
- Interval breast cancer (IC) has a more aggressive phenotype and higher mortality than screen-detected cancer (SDC). In this case-case study, we investigated whether the size of longitudinal fluctuations in mammographic percent density (PD fluctuation) was associated with the ratio of IC versus SDC among screened women with breast cancer. The primary study population consisted of 1,414 postmenopausal breast cancer cases, and the validation population of 1,241 cases. We calculated PD fluctuation as the quadratic mean of deviations between actual PD and the long-term trend estimated by a mixed effects model. In a logistic regression model we examined the association between PD fluctuation and IC versus SDC including adjustments for PD at last screening, age at diagnosis, BMI and hormone replacement therapy. All statistical tests were two-sided. There were 385 IC and 1,029 SDC in the primary study population, with PD fluctuations of 0.44 and 0.41 respectively (p = 0.0309). After adjustments, PD fluctuation was associated with an increased ratio of IC versus SDC, with an estimated per-standard deviation odds ratio of 1.17 (95% CI = 1.03-1.33), compared to 1.19 (95% CI = 1.04-1.38) in the validation population. In screened women with breast cancer, high fluctuation in mammographic percent density was associated with an increased ratio of IC versus SDC. Whether this is entirely related to a reduced mammographic detectability or to a biological phenotype promoting faster tumor growth remains to be elucidated.
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- art (ämneskategori)
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Till lärosätets databas
- Av författaren/redakt...
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Strand, Fredrik
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Humphreys, Keith
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Eriksson, Mikael
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Li, Jingmei
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Andersson, There ...
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Törnberg, Sven
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visa fler...
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Azavedo, Edward
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Shepherd, John
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Hall, Per
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Czene, Kamila
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visa färre...
- Artiklar i publikationen
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International Jo ...
- Av lärosätet
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Karolinska Institutet