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arXiv 1607.05906cs.AI
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通过整合使用涌现模式挖掘识别的相互作用变量来精炼药物不良反应信号

Refining adverse drug reaction signals by incorporating interaction variables identified using emergent pattern mining

University of Nottingham(诺丁汉大学)

Jenna M. Reps, Uwe Aickelin, Richard B. Hubbard

摘要:

目的:开发一个框架,用于识别候选混杂相互作用项并将其纳入正则化cox回归分析,以细化通过纵向观察数据获得的药物不良反应信号。研究方法:我们考虑了观察性医疗保健数据中通常与心肌梗死相关的6个药物家族,但其中因果关系基础事实已知(药物不良反应与否)。我们应用紧急模式挖掘来发现与心肌梗死发展相关的药物和医疗事件的项目集。这些是候选混杂交互作用项。然后,我们使用正则化cox回归进行了一项队列研究设计,该回归纳入并解释了候选的混杂相互作用项。结果该方法能够解释由于混杂而产生的信号,并且具有弹性网络正则化的cox回归正确地将已知为真实药物不良反应的药物家族排在这些药物家族之上。

英文摘要:

Purpose: To develop a framework for identifying and incorporating candidate confounding interaction terms into a regularised cox regression analysis to refine adverse drug reaction signals obtained via longitudinal observational data. Methods: We considered six drug families that are commonly associated with myocardial infarction in observational healthcare data, but where the causal relationship ground truth is known (adverse drug reaction or not). We applied emergent pattern mining to find itemsets of drugs and medical events that are associated with the development of myocardial infarction. These are the candidate confounding interaction terms. We then implemented a cohort study design using regularised cox regression that incorporated and accounted for the candidate confounding interaction terms. Results The methodology was able to account for signals generated due to confounding and a cox regression with elastic net regularisation correctly ranked the drug families known to be true adverse drug reactions above those.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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