Effect of aspirin and NSAIDs on risk and survival from colorectal cancer
Journal Title: | Gut 2010, Vol.59 (12), p.1670-1679 |
Main Author: | Din, Farhat V N |
Other Authors: | Theodoratou, Evropi , Farrington, Susan M , Tenesa, Albert , Barnetson, Rebecca A , Cetnarskyj, Roseanne , Stark, Lesley , Porteous, Mary E , Campbell, Harry , Dunlop, Malcolm G |
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English |
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Publisher: | London: BMJ Publishing Group Ltd and British Society of Gastroenterology |
ID: | ISSN: 0017-5749 |
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recordid: | cdi_proquest_miscellaneous_1753476937 |
title: | Effect of aspirin and NSAIDs on risk and survival from colorectal cancer |
format: | Article |
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ispartof: | Gut, 2010, Vol.59 (12), p.1670-1679 |
description: | BackgroundPrevious studies have shown that aspirin and other non-steroidal anti-inflammatory drugs (NSAIDs) lower colorectal cancer (CRC) risk. However, the lowest effective NSAID dose, treatment duration, and effects on survival are not defined. In a large population-based case–control study, we have explored the relationship between NSAID dose and duration, CRC risk and overall CRC-specific survival.MethodsThe relationship between NSAID use and CRC risk was examined in 2279 cases and 2907 controls. Subjects completed food-frequency and lifestyle questionnaires. NSAID categories were low-dose aspirin (75 mg), non-aspirin NSAIDs (NA-NSAIDs) and any NSAID. Users were defined as taking >4 tablets/week for >1 month. ORs were calculated by logistic regression models and adjusted for potential confounding factors. Effect of NSAID use on all-cause and CRC-specific mortality was estimated using Logrank tests and Cox's hazard models.ResultsIn all, 354 cases (15.5%) were taking low-dose aspirin compared to 526 controls (18.1%). Low-dose aspirin use was associated with decreased CRC risk (OR 0.78 95% CI 0.65 to 0.92, p=0.004), evident after 1 year and increasing with duration of use (ptrend=0.004). NA-NSAID and any NSAID use were also inversely associated with CRC. There was no demonstrable effect of NSAIDS on all-cause (HR 1.11, p=0.22, 0.94–1.33) or CRC-specific survival (HR 1.01, p=0.93, 0.83–1.23).ConclusionThis is the first study to demonstrate a protective effect against CRC associated with the lowest dose of aspirin (75 mg per day) after only 5 years use in the general population. NSAID use prior to CRC diagnosis does not influence survival from the disease. |
language: | eng |
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identifier: | ISSN: 0017-5749 |
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