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Risk of colorectal cancer in users of bisphosphonates: analysis of population-based electronic health records
European Journal of Epidemiology ( IF 13.6 ) Pub Date : 2019-11-16 , DOI: 10.1007/s10654-019-00584-5
Gemma Ibáñez-Sanz , Elisabet Guinó , Caridad Pontes , Rosa Morros , Luisa C. de la Peña-Negro , Mª Ángeles Quijada-Manuitt , Victor Moreno

The use of bisphosphonates has been associated with a decrease in the risk of colorectal cancer (CRC) in observational studies, but with controversial results and difficult to interpret because of routine concomitant use of calcium and vitamin D. We aimed to assess the association between CRC risk and outpatient exposure to antiosteoporotic drugs using a large cohort with prescription data in Catalonia. A case–control study was performed using the Information System for Development of Primary Care Research (SIDIAP) which is a primary care medical record database that has linked data on reimbursed medication. The study included 25,836 cases with an incident diagnosis of CRC between 2010 and 2015 and 129,117 matched controls by age (± 5 years), sex and healthcare region. A multivariable model was built adjusting for known risk factors and comorbidities that were significantly associated to CRC in the dataset, and a propensity score for bisphosphonates. Tests for interaction for multiple drug use and stratified analysis for tumour location were prospectively planned. Overall 18,230 individuals (11.5%) were users of bisphosphonates. A significant but modest protective effect on CRC was observed for bisphosphonates (OR 0.95, 95% CI 0.91–0.99), that was no longer significant when adjusted for calcium and vitamin D (OR 0.98, 95% CI 0.93–1.03). Bisphosphonates, however, showed a dose–response effect with duration of use even when adjusted for calcium and vitamin D (OR for use > 40 months: 0.90, 95% CI 0.81–1.00, P value for trend: 0.018). The use of bisphosphonates was associated with a modest decrease in the risk of CRC, but this effect was essentially explained by concomitant use of calcium or vitamin D. The observed protective effect was stronger for long durations of use, which deserves further study.

中文翻译:

双膦酸盐类药物使用者大肠癌的风险:基于人群的电子健康记录分析

在观察性研究中,双膦酸盐的使用与降低结直肠癌(CRC)的风险有关,但由于常规同时使用钙和维生素D,因此存在争议的结果且难以解释。我们旨在评估CRC之间的关联加泰罗尼亚使用处方数据的大型队列研究人群进行抗骨质疏松药物治疗的风险和门诊暴露情况 使用基层医疗研究发展信息系统(SIDIAP)进行了病例对照研究,该系统是基层医疗病历数据库,已链接了已报销的药物数据。该研究包括2010年至2015年间25,836例经CRC确诊的病例,以及按年龄(±5岁),性别和医疗保健地区划分的129,117名匹配对照。建立了一个多变量模型,以调整与数据集中CRC显着相关的已知风险因素和合并症,以及双膦酸盐的倾向评分。前瞻性地计划了多种药物相互作用的测试和肿瘤位置的分层分析。总共有18,230个人(11.5%)是双膦酸盐的使用者。对于双膦酸盐(OR 0.95,95%CI 0.91-0.99),观察到对CRC有显着但适度的保护作用,而对钙和维生素D进行调整后,CRC的作用不再显着(OR 0.98,95%CI 0.93-1.03)。然而,即使调整了钙和维生素D(使用40个月或以上:0.90,95%CI 0.81–1.00,前瞻性地计划了多种药物相互作用的测试和肿瘤位置的分层分析。总共有18,230个人(11.5%)是双膦酸盐的使用者。对于双膦酸盐(OR 0.95,95%CI 0.91-0.99),观察到对CRC有显着但适度的保护作用,而对钙和维生素D进行调整后,CRC的作用不再显着(OR 0.98,95%CI 0.93-1.03)。然而,即使调整了钙和维生素D(使用40个月或以上:0.90,95%CI 0.81–1.00,前瞻性地计划了多种药物相互作用的测试和肿瘤位置的分层分析。总共有18,230个人(11.5%)是双膦酸盐的使用者。对于双膦酸盐(OR 0.95,95%CI 0.91-0.99),观察到对CRC有显着但适度的保护作用,而对钙和维生素D进行调整后,CRC的作用不再显着(OR 0.98,95%CI 0.93-1.03)。然而,即使调整了钙和维生素D(使用40个月或以上:0.90,95%CI 0.81–1.00,99),调整钙和维生素D(OR 0.98,95%CI 0.93–1.03)时不再显着。然而,即使调整了钙和维生素D(使用40个月或以上:0.90,95%CI 0.81–1.00,99),调整钙和维生素D(OR 0.98,95%CI 0.93–1.03)时不再显着。然而,即使调整了钙和维生素D(使用40个月或以上:0.90,95%CI 0.81–1.00,趋势的P值:0.018)。双膦酸盐的使用与CRC风险的适度降低有关,但这种作用基本上可以通过同时使用钙或维生素D来解释。观察到的长期保护作用更强,值得进一步研究。
更新日期:2019-11-17
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