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Active smoking and risk of breast cancer in a Danish nurse cohort study

Overview of attention for article published in BMC Cancer, August 2017
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About this Attention Score

  • In the top 25% of all research outputs scored by Altmetric
  • High Attention Score compared to outputs of the same age (87th percentile)
  • High Attention Score compared to outputs of the same age and source (95th percentile)

Mentioned by

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1 news outlet
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9 X users
facebook
1 Facebook page

Citations

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27 Dimensions

Readers on

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101 Mendeley
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Title
Active smoking and risk of breast cancer in a Danish nurse cohort study
Published in
BMC Cancer, August 2017
DOI 10.1186/s12885-017-3546-4
Pubmed ID
Authors

Zorana Jovanovic Andersen, Jeanette Therming Jørgensen, Randi Grøn, Elvira Vaclavik Brauner, Elsebeth Lynge

Abstract

No scientific consensus has been reached on whether active tobacco smoking causes breast cancer. We examine the association between active smoking and breast cancer risk in Denmark, which has some of the highest smoking and breast cancer rates in women worldwide. We used the data from a nationwide Danish Nurse Cohort on 21,867 female nurses (age > 44 years) who at recruitment in 1993 or 1999 reported information on smoking status, onset, duration, and intensity, as well as breast cancer risk factors. We obtained data on incidence of breast cancer from Danish Cancer Registry until 2013, and used Cox regression models to analyze the association between smoking and breast cancer. Of 21,831 women (mean age 53.2 years) 1162 developed breast cancer during 15.7 years of follow-up. 33.7% of nurses were current and 30.0% former smokers at cohort baseline. Compared to never smokers, we found increased risk of breast cancer of 18% in ever (hazard ratio and 95% confidence interval: 1.18; 1.04-1.34) and 27% in current (1.27; 1.11-1.46) smokers. We detected a dose-response relationship with smoking intensity with the highest breast cancer risk in women smoking >15 g/day (1.31; 1.11-1.56) or >20 pack-years (1.32; 1.12-1.55). Parous women who smoked heavily (>10 pack-years) before first childbirth had the highest risk of breast cancer (1.58; 1.20-2.10). Association between smoking and breast cancer was not modified by menopausal status, obesity, alcohol or hormone therapy use, and seemed to be limited to the estrogen receptor positive breast cancer subtype. Active smoking increases risk of breast cancer, with smoking before first birth being the most relevant exposure window.

X Demographics

X Demographics

The data shown below were collected from the profiles of 9 X users who shared this research output. Click here to find out more about how the information was compiled.
Mendeley readers

Mendeley readers

The data shown below were compiled from readership statistics for 101 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Spain 1 <1%
Unknown 100 99%

Demographic breakdown

Readers by professional status Count As %
Researcher 15 15%
Student > Bachelor 11 11%
Student > Ph. D. Student 8 8%
Student > Master 8 8%
Student > Postgraduate 5 5%
Other 23 23%
Unknown 31 31%
Readers by discipline Count As %
Medicine and Dentistry 25 25%
Nursing and Health Professions 10 10%
Biochemistry, Genetics and Molecular Biology 6 6%
Unspecified 5 5%
Environmental Science 4 4%
Other 17 17%
Unknown 34 34%
Attention Score in Context

Attention Score in Context

This research output has an Altmetric Attention Score of 16. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 05 November 2017.
All research outputs
#2,203,022
of 25,153,613 outputs
Outputs from BMC Cancer
#364
of 8,886 outputs
Outputs of similar age
#40,946
of 323,101 outputs
Outputs of similar age from BMC Cancer
#6
of 121 outputs
Altmetric has tracked 25,153,613 research outputs across all sources so far. Compared to these this one has done particularly well and is in the 91st percentile: it's in the top 10% of all research outputs ever tracked by Altmetric.
So far Altmetric has tracked 8,886 research outputs from this source. They receive a mean Attention Score of 4.6. This one has done particularly well, scoring higher than 95% of its peers.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 323,101 tracked outputs that were published within six weeks on either side of this one in any source. This one has done well, scoring higher than 87% of its contemporaries.
We're also able to compare this research output to 121 others from the same source and published within six weeks on either side of this one. This one has done particularly well, scoring higher than 95% of its contemporaries.