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Effect of Mammograp...
Effect of Mammography Screening on Mortality by Histological Grade
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Tabar, Laszlo (författare)
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Chen, Tony Hsiu-Hsi (författare)
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Yen, Amy Ming-Fang (författare)
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Chen, Sam Li-Sheng (författare)
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Fann, Jean Ching-Yuan (författare)
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Chiu, Sherry Yueh-Hsia (författare)
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Ku, May M. S. (författare)
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- Wu, Wendy Yi-Ying (författare)
- Umeå universitet,Onkologi
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Hsu, Chen-Yang (författare)
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Chen, Yu-Ying (författare)
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Beckmann, Kerri (författare)
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Smith, Robert A. (författare)
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Duffy, Stephen W. (författare)
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(creator_code:org_t)
- American Association for Cancer Research, 2018
- 2018
- Engelska.
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Ingår i: Cancer Epidemiology, Biomarkers and Prevention. - : American Association for Cancer Research. - 1055-9965 .- 1538-7755. ; 27:2, s. 154-157
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
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- Background: It has been asserted that mammography screening preferentially benefits those with less aggressive cancers, with lesser or no impact on more rapidly progressing and therefore more life-threatening tumors. Methods: We utilized data from the Swedish Two-County Trial, which randomized 77,080 women ages 40 to 74 to invitation to screening and 55,985 for usual care. We tabulated cancers by histologic grade and then compared mortality from cancers specific to histologic grade between the invited and control group using Poisson regression, with specific interest in the effect on mortality from grade 3 cancers. We used incidence-based mortality from tumors diagnosed within the screening phase of the trial. Finally, we cross-tabulated grade with tumor size and node status, to assess downstaging within tumor grades. Results: There was a major reduction in mortality from grade 3 tumors (RR = 0.65; 95% CI, 0.53-0.80; P < 0.001), and more deaths prevented from grade 3 tumors (n = 95) than grade 1 and 2 tumors combined (n = 48) in the invited group. The proportions of tumors >= 15 mm or larger and node-positive tumors were substantially reduced in the grade 3 tumors in the invited group. Conclusions: The combination of prevention of tumors progressing to grade 3 and detection at smaller sizes and lesser rates of lymph node metastases within grade 3 tumors results in a substantial number of deaths from grade 3 cancers being prevented by invitation to mammographic screening. Impact: Mammography screening prevents deaths from aggressive cancers.
Ämnesord
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Cancer och onkologi (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Cancer and Oncology (hsv//eng)
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Tabar, Laszlo
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Chen, Tony Hsiu- ...
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Yen, Amy Ming-Fa ...
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Chen, Sam Li-She ...
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Fann, Jean Ching ...
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Chiu, Sherry Yue ...
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visa fler...
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Ku, May M. S.
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Wu, Wendy Yi-Yin ...
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Hsu, Chen-Yang
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Chen, Yu-Ying
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Beckmann, Kerri
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Smith, Robert A.
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Duffy, Stephen W ...
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visa färre...
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Umeå universitet