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Existing data sources for clinical epidemiology: the Danish Quality Database of Mammography Screening

Overview of attention for article published in Clinical Epidemiology, March 2013
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18 Mendeley
Title
Existing data sources for clinical epidemiology: the Danish Quality Database of Mammography Screening
Published in
Clinical Epidemiology, March 2013
DOI 10.2147/clep.s40484
Pubmed ID
Authors

Vivian Langagergaard, Garne , Vejborg, Schwartz, Bak, Lernevall, Mogensen, Larsson, Andersen, Mikkelsen

Abstract

The Danish Quality Database of Mammography Screening (DKMS) was established in 2007, when screening was implemented on a nationwide basis and offered biennially to all Danish women aged 50-69 years. The primary aims of the database are to monitor and evaluate the quality of the screening program and - after years of follow-up - to evaluate the effect of nationwide screening on breast cancer-specific mortality. Here, we describe the database and present results for quality assurance from the first round of national screening. The steering committee for the DKMS defined eleven organizational and clinical quality indicators and standards to monitor the Danish breast cancer screening program. We calculated the relevant proportions and ratios with 95% confidence intervals for each quality indicator. All indicators were assessed on a national and regional level. Of 670,039 women invited for mammography, 518,823 (77.4%) participated. Seventy-one percent of the women received the result of their mammography examination within 10 days of screening, and 3% of the participants were recalled for further investigation. Among all detected cancers, 86% were invasive cancers, and the proportion of women with node negative cancer was 67%. There were 36% women with small cancers, and the ratio of surgery for benign lesions to malignant lesions was 1:6.3. A total of 80% of women with invasive cancers were treated with breast conserving therapy. Screening interval and interval cancers were not relevant in the first round, and data regarding radiation dose were not available at the time of evaluation. Overall, the quality indicators showed satisfactory quality in the first round of national breast cancer screening in Denmark. The DKMS is a potentially valuable tool for improving quality and conducting research in the field of breast cancer screening.

Twitter Demographics

The data shown below were collected from the profiles of 3 tweeters who shared this research output. Click here to find out more about how the information was compiled.

Mendeley readers

The data shown below were compiled from readership statistics for 18 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
United Kingdom 1 6%
Unknown 17 94%

Demographic breakdown

Readers by professional status Count As %
Student > Master 4 22%
Researcher 2 11%
Student > Doctoral Student 2 11%
Other 2 11%
Student > Postgraduate 2 11%
Other 3 17%
Unknown 3 17%
Readers by discipline Count As %
Medicine and Dentistry 8 44%
Biochemistry, Genetics and Molecular Biology 2 11%
Agricultural and Biological Sciences 1 6%
Social Sciences 1 6%
Computer Science 1 6%
Other 0 0%
Unknown 5 28%

Attention Score in Context

This research output has an Altmetric Attention Score of 1. 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 08 April 2013.
All research outputs
#2,926,200
of 6,228,985 outputs
Outputs from Clinical Epidemiology
#86
of 173 outputs
Outputs of similar age
#48,609
of 98,427 outputs
Outputs of similar age from Clinical Epidemiology
#5
of 7 outputs
Altmetric has tracked 6,228,985 research outputs across all sources so far. This one is in the 29th percentile – i.e., 29% of other outputs scored the same or lower than it.
So far Altmetric has tracked 173 research outputs from this source. They receive a mean Attention Score of 4.8. This one is in the 43rd percentile – i.e., 43% of its peers scored the same or lower than it.
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 98,427 tracked outputs that were published within six weeks on either side of this one in any source. This one is in the 37th percentile – i.e., 37% of its contemporaries scored the same or lower than it.
We're also able to compare this research output to 7 others from the same source and published within six weeks on either side of this one. This one has scored higher than 2 of them.