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Type 2 Diabetes, Antidiabetic Medications, and Colorectal Cancer Risk: Two Case–Control Studies from Italy and Spain

Overview of attention for article published in Frontiers in oncology, October 2016
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Title
Type 2 Diabetes, Antidiabetic Medications, and Colorectal Cancer Risk: Two Case–Control Studies from Italy and Spain
Published in
Frontiers in oncology, October 2016
DOI 10.3389/fonc.2016.00210
Pubmed ID
Authors

Valentina Rosato, Alessandra Tavani, Esther Gracia-Lavedan, Elisabet Guinó, Gemma Castaño-Vinyals, Cristina M. Villanueva, Manolis Kogevinas, Jerry Polesel, Diego Serraino, Federica E. Pisa, Fabio Barbone, Victor Moreno, Carlo La Vecchia, Cristina Bosetti

Abstract

Type 2 diabetes mellitus has been associated with an excess risk of colorectal cancer, although the time-risk relationship is unclear, and there is limited information on the role of antidiabetic medications. We examined the association between type 2 diabetes, antidiabetic medications, and the risk of colorectal cancer, considering also duration of exposures. We analyzed data derived from two companion case-control studies conducted in Italy and Spain between 2007 and 2013 on 1,147 histologically confirmed colorectal cancer cases and 1,594 corresponding controls. Odds ratios (ORs) and 95% confidence intervals (CIs) were estimated by unconditional multiple logistic regression models, adjusted for socioeconomic factors and major potential confounding factors. Overall, 14% of cases and 12% of controls reported a diagnosis of diabetes, corresponding to an OR of colorectal cancer of 1.21 (95% CI 0.95-1.55). The OR was 1.49 (95% CI 0.97-2.29) for a duration of diabetes of at least 15 years. The OR was 1.53 (95% CI 1.06-2.19) for proximal colon cancer, 0.94 (95% CI 0.66-1.36) for distal colon cancer, and 1.32 (95% CI 0.94-1.87) for rectal cancer. In comparison with no use, metformin use was associated with a decreased colorectal cancer risk (OR 0.47, 95% CI 0.24-0.92), while insulin use was associated with an increased risk (OR 2.20, 95% CI 1.12-4.33); these associations were stronger for longer use (OR 0.36 and 8.18 for ≥10 years of use of metformin and insulin, respectively). This study shows evidence of a positive association between diabetes and colorectal cancer, mainly proximal colon cancer. Moreover, it indicates a negative association between colorectal cancer and metformin use and a positive association for insulin use.

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The data shown below were collected from the profiles of 2 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 46 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Unknown 46 100%

Demographic breakdown

Readers by professional status Count As %
Student > Bachelor 7 15%
Researcher 6 13%
Student > Master 5 11%
Student > Ph. D. Student 4 9%
Professor 2 4%
Other 3 7%
Unknown 19 41%
Readers by discipline Count As %
Medicine and Dentistry 15 33%
Social Sciences 3 7%
Engineering 2 4%
Decision Sciences 2 4%
Pharmacology, Toxicology and Pharmaceutical Science 1 2%
Other 2 4%
Unknown 21 46%
Attention Score in Context

Attention Score in Context

This research output has an Altmetric Attention Score of 2. 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 06 October 2016.
All research outputs
#16,720,137
of 25,371,288 outputs
Outputs from Frontiers in oncology
#6,608
of 22,414 outputs
Outputs of similar age
#202,997
of 327,117 outputs
Outputs of similar age from Frontiers in oncology
#24
of 61 outputs
Altmetric has tracked 25,371,288 research outputs across all sources so far. This one is in the 32nd percentile – i.e., 32% of other outputs scored the same or lower than it.
So far Altmetric has tracked 22,414 research outputs from this source. They receive a mean Attention Score of 3.0. This one has gotten more attention than average, scoring higher than 64% 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 327,117 tracked outputs that were published within six weeks on either side of this one in any source. This one is in the 35th percentile – i.e., 35% of its contemporaries scored the same or lower than it.
We're also able to compare this research output to 61 others from the same source and published within six weeks on either side of this one. This one has gotten more attention than average, scoring higher than 54% of its contemporaries.