A logistic regression model when some events precede treatment: the effect of thrombolytic therapy for acute myocardial infarction on the risk of cardiac arrest.

A logistic regression model when some events precede treatment: the effect of thrombolytic therapy for acute myocardial infarction on the risk of cardiac arrest.
复制标题

治疗前发生某些事件时的逻辑回归模型:急性心肌梗死溶栓治疗对心脏骤停风险的影响。

DOI:
10.1016/s0895-4356(97)00125-x
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发表时间:
1997
影响因子:
7.2
通讯作者:
Selker,HP
Selker,HP
中科院分区:
医学2区
文献类型:
--
作者:
Schmid,CH;D'Agostino,RB;Griffith,JL;Beshansky,JR;Selker,HP

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当临床试验在给予治疗之前出现结果时,意向治疗分析和根据方案的分析都不能给出治疗效果的最佳估计。一种更好的方法是使用随时间变化的治疗变量。意向治疗分析是保守的,偏向于治疗;根据方案分析偏向于治疗。我们展示了如何使用人-时间间隔作为度量单位来衡量Logistic回归中时间依赖变量的影响,并描述了报告模型性能的适当方法。该方法被应用于开发一个模型,以预测心肌梗死患者在接受溶栓治疗和未接受治疗时,在紧急医疗服务出现后48小时内心脏骤停的可能性。我们使用时间依赖的治疗变量,因为许多患者在等待治疗时心脏骤停。这项技术已经被编程到心电图机中,用于急诊科的实时使用。
When outcomes occur in clinical trials before treatment can be given, neither intent-to-treat nor according-to-protocol analyses give optimal estimates of the treatment effect. A better approach employs a time-dependent variable for treatment. Intent-to-treat analyses are conservative, biasing against treatment; according-to-protocol analyses bias in favor of treatment. We show how to measure the effect of a time-dependent variable in a logistic regression using person-time intervals as units of measurement and describe appropriate methods for reporting model performance. The method is applied to develop a model to predict the probability that a patient with a myocardial infarction will have a sudden cardiac arrest within 48 hours of presentation to emergency medical services both when treated with thrombolysis and when not treated. We use a time-dependent treatment variable because many patients went into cardiac arrest while awaiting treatment. This technique has been programmed into an electrocardiograph for real-time use in an emergency department.
静脉注射组织纤溶酶原激活剂和早期静脉注射肝素治疗急性心肌梗死的随机对照试验。
DOI: 10.1161/01.cir.79.2.281
发表时间: 1989
期刊: Circulation
影响因子: 37.8
作者:
Topol,EJ;George,BS;Kereiakes,DJ;Stump,DC;Candela,RJ;Abbottsmith,CW;Aronson,L;Pickel,A;Boswick,JM;Lee,KL
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DOI: 10.1016/0895-4356(94)90113-9
发表时间: 1994
影响因子: 7.2
作者:
R. Meinert;T. Frischer;J. Kuehr
通讯作者: J. Kuehr
DOI: 10.1002/sim.4780080608
发表时间: 1989-06-01
影响因子: 2
作者:
ROBINS, J
通讯作者: ROBINS, J
DOI: 10.1016/0895-4356(90)90019-l
发表时间: 1990-01-01
影响因子: 7.2
作者:
HERMAN, AA;HASTIE, TJ
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急性心肌梗死死亡率的时间不敏感预测工具:多中心研究
DOI: --
发表时间: 1991
期刊: Medical Care
影响因子: 3
作者:
H. Selker;J. Griffith;R. D'Agostino
通讯作者: R. D'Agostino