基于工具变量的丁苯酞−急性缺血性卒中的因果效应评估

林容基; 陈薇; 黄志新; 蔡瑞初

doi:10.12052/gdutxb.230157

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基于工具变量的丁苯酞−急性缺血性卒中的因果效应评估

智慧医疗 | 更新时间：2026-05-27

- 基于工具变量的丁苯酞−急性缺血性卒中的因果效应评估
- Assessment of Causal Effects of Butylphthalide-acute Ischemic Stroke Based on Instrumental Variables
- 广东工业大学学报 2024年41卷第1期页码：41-46
- 作者机构：
  
  1. 广东工业大学计算机学院,广东,广州,510006
  2. 广东省第二人民医院神经内科,广东,广州,510317
- 作者简介：
  
  林容基(1998–)，男，硕士研究生，主要研究方向为因果关系
  蔡瑞初(1983–)，男，教授，博士生导师，主要研究方向为因果关系、机器学习、数据挖掘，E-mail：cairuichu@gmail.com
- 基金信息：
  
  国家自然科学基金资助项目(61876043，61976052);科技创新2030——“新一代人工智能”重大项目(2021ZD0111501);国家优秀青年科学基金资助项目 (62122022);广州市科技项目(202201020359)
- DOI：10.12052/gdutxb.230157
  中图分类号： TP399
- 网络首发：2024-01-25，
  
  纸质出版：2024
- 稿件说明：
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林容基, 陈薇, 黄志新, 蔡瑞初. 基于工具变量的丁苯酞−急性缺血性卒中的因果效应评估[J]. 广东工业大学学报, 2024, 41(1): 41-46.

Lin Rong-ji, Chen Wei, Huang Zhi-xin, et al. Assessment of Causal Effects of Butylphthalide-acute Ischemic Stroke Based on Instrumental Variables[J]. 2024, 41(1): 41-46.
林容基, 陈薇, 黄志新, 蔡瑞初. 基于工具变量的丁苯酞−急性缺血性卒中的因果效应评估[J]. 广东工业大学学报, 2024, 41(1): 41-46. DOI： 10.12052/gdutxb.230157.

Lin Rong-ji, Chen Wei, Huang Zhi-xin, et al. Assessment of Causal Effects of Butylphthalide-acute Ischemic Stroke Based on Instrumental Variables[J]. 2024, 41(1): 41-46. DOI： 10.12052/gdutxb.230157.

摘要

因果效应分析在临床统计中是一种常见的研究方法，其通常基于观察数据进行分析。然而，在使用观察数据进行因果效应分析时，常受到未观测变量的影响，从而使因果效应评估出现偏差。当无法忽略未观测变量带来的偏差或无法找到适当的代理变量来削弱这种偏差时，传统方法无法提供可靠的因果效应估计。为了解决这一问题，本文采用工具变量法，在临床统计的药效分析领域提出一种比传统方法更加准确的计算方法，将未观测变量的影响纳入误差项，以实现准确的因果效应估计。通过将观察数据中满足特定假设的变量作为工具变量，计算了丁苯酞(一种药物)对急性缺血性卒中(Acute Ischemic Stroke，AIS)患者在存在未观测变量的情况下，其3个月预后的因果效应，并评估了该因果估计量的置信区间。研究结果揭示了丁苯酞对急性缺血性卒中患者的预后恢复具有明显的积极作用。

Abstract

Causal effect analysis is an important and popular method in clinical statistics

which typically conducted based on the observational data. However

the analysis based on observed data may be affected by unobserved variables

which may produce bias

leading to estimate the causal effects inaccurately. Existing methods ignore the unobserved variables or are unable to find appropriate proxy variables to weaken this bias

which fail to provide reliable estimation of the causal effects. To address this problem

this paper proposes the instrumental variable method

a more accurate computational method than traditional approaches in the realm of clinical statistic for drug efficacy analysis. This method incorporates the effect of unobserved into the error term

to estimate the accurate causal effect. Under some mild assumptions

the variables in the observational data is considered as instrumental variables. Then

the proposed method calculates the effects of butylphthalide (i.e.

a drug) on patients with acute ischemic stroke (AIS) in the presence of unobserved variables. The causal effect of monthly prognosis and the confidence interval of this causal estimator is estimated. The study results show that the butylphthalide has a significant positive effect on the prognostic recovery of patients with acute ischemic stroke.

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references

YAO L, CHU Z, LI S, et al . A survey on causal inference [J ] . ACM Transactions on Knowledge Discovery from Data (TKDD) , 2021, 15(5): 1-46.

IMBENS G W, RUBIN D B. Causal inference in statistics, social, and biomedical sciences[M]. Cambridge: Cambridge University Press, 2015.

BRICK J M, KALTON G. Handling missing data in survey research [J]. Statistical Methods in Medical Research, 1996, 5(3): 215-238.

ABADIE A, DRUKKER D, HERR J L, et al . Implementing matching estimators for average treatment effects in Stata [J ] . The Stata Journal, 2004, 4(3): 290-311.

LOH W Y. Classification and regression trees [J]. WIREs:Data Mining and Knowledge Discovery, 2011, 1(1): 14-23.

BENGIO Y, COURVILLER A, VINCENT P. Representation learning: a review and new perspectives [J]. IEEE Transactions on Pattern Analysis and Machine Intelligence, 2013, 35(8): 1798-1828.

CARUANA R. Multitask learning [J]. Machine Learning, 1997, 28(1): 41-75.

HOSPEDALES T, ANTONIOU A, MICAELLI P, et al . Meta-learning in neural networks: a survey [J ] . IEEE Transactions on Pattern Analysis and Machine Intelligence, 2021, 44(9): 5149-5169.

BAIOCCHI M, CHENG J, SMALL D S. Instrumental variable methods for causal inference [J]. Statistics in Medicine, 2014, 33(13): 2297-2340.

MARTENS E P, PESTMAN W R, DE BOER A, et al . Instrumental variables: application and limitations [J ] . Epidemiology, 2006, 17(3): 260-267.

OHLSSON H, KENDLER K S. Applying causal inference methods in psychiatric epidemiology: a review [J]. JAMA Psychiatry, 2020, 77(6): 637-644.

BROOKHART M A, SCHNEEWEISS S. Preference-based instrumental variable methods for the estimation of treatment effects: assessing validity and interpreting results [J]. The International Journal of Biostatistics, 2007, 3(1): 14.

MUKAMAL K J, STAMPFER M J, RIMM E B. Genetic instrumental variable analysis: time to call mendelian randomization what it is. The example of alcohol and cardiovascular disease [J]. European Journal of Epidemiology, 2020, 35: 93-97.

DAVEY SMITH G, EBRAHIM S. ‘Mendelian randomization’: can genetic epidemiology contribute to understanding environmental determinants of disease? [J]. International Journal of Epidemiology, 2003, 32(1): 1-22.

RASSEN J A, SCHNEEWEISS S, GLYNN R J, et al . Instrumental variable analysis for estimation of treatment effects with dichotomous outcomes [J ] . American Journal of Epidemiology, 2009, 169(3): 273-284.

伍德里奇. 计量经济学导论: 现代方法[M]. 北京: 清华大学出版社, 2017.

KIM H Y. Statistical notes for clinical researchers: risk difference, risk ratio, and odds ratio [J]. Restorative Dentistry Endodontics, 2017, 42(1): 72-76.

BROOKHART M A, WANG P, SOLOMON D H, et al . Evaluating short-term drug effects using a physician-specific prescribing preference as an instrumental variable [J ] . Epidemiology, 2006, 17(3): 268.

MCCOY C E. Understanding the intention-to-treat principle in randomized controlled trials [J]. Western Journal of Emergency Medicine, 2017, 18(6): 1075.

MA H, ROBINS J M. Instruments for causal inference: an epidemiologist's dream? [J]. Epidemiology, 2006, 17(4): 360-372.

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