Competing time-to-event endpoints in cardiology trials - a simulation study to illustrate the importance of an adequate statistical analysis
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Competing time-to-event endpoints in cardiology trials - a simulation study to illustrate the importance of an adequate statistical analysis. / Rauch, Geraldine; Kieser, Meinhard; Ulrich, Sandra; Doherty, Patrick; Rauch, Bernhard; Schneider, Steffen; Riemer, Thomas; Senges, Jochen.
in: EUR J PREV CARDIOL, Jahrgang 21, Nr. 1, 01.2014, S. 74-80.Publikationen: SCORING: Beitrag in Fachzeitschrift/Zeitung › SCORING: Zeitschriftenaufsatz › Forschung › Begutachtung
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TY - JOUR
T1 - Competing time-to-event endpoints in cardiology trials - a simulation study to illustrate the importance of an adequate statistical analysis
AU - Rauch, Geraldine
AU - Kieser, Meinhard
AU - Ulrich, Sandra
AU - Doherty, Patrick
AU - Rauch, Bernhard
AU - Schneider, Steffen
AU - Riemer, Thomas
AU - Senges, Jochen
PY - 2014/1
Y1 - 2014/1
N2 - BACKGROUND: Clinical trials in cardiology commonly consider time-to-event endpoints that are often influenced by competing risks. In the presence of competing risks, standard survival analysis techniques, such as the Kaplan-Meier estimator, can yield seriously biased results. Although methods to account for competing risks are well known in the statistical literature, they are rarely applied in clinical trials.DESIGN: Simulation study, to demonstrate the appropriate application and interpretation of the competing risks methodology with respect to time-to-event endpoints.METHODS: In this paper, different statistical approaches to account for competing risks are systematically compared, based on a simulation study and using the original data from a cardiology trial.RESULTS: Group comparisons in clinical trials that have competing time-to-event endpoints should be based on the cause-specific hazard functions. In contrast, group comparisons based on event rates should be carried out with care, as event rates are directly influenced by competing events.CONCLUSION: Ignoring or not fully accounting for competing risks may yield misleading or even erroneous results, which could hinder understanding of survival trends; therefore, it is important that competing risks methodology be routinely incorporated into clinical trial standards.
AB - BACKGROUND: Clinical trials in cardiology commonly consider time-to-event endpoints that are often influenced by competing risks. In the presence of competing risks, standard survival analysis techniques, such as the Kaplan-Meier estimator, can yield seriously biased results. Although methods to account for competing risks are well known in the statistical literature, they are rarely applied in clinical trials.DESIGN: Simulation study, to demonstrate the appropriate application and interpretation of the competing risks methodology with respect to time-to-event endpoints.METHODS: In this paper, different statistical approaches to account for competing risks are systematically compared, based on a simulation study and using the original data from a cardiology trial.RESULTS: Group comparisons in clinical trials that have competing time-to-event endpoints should be based on the cause-specific hazard functions. In contrast, group comparisons based on event rates should be carried out with care, as event rates are directly influenced by competing events.CONCLUSION: Ignoring or not fully accounting for competing risks may yield misleading or even erroneous results, which could hinder understanding of survival trends; therefore, it is important that competing risks methodology be routinely incorporated into clinical trial standards.
KW - Biomedical Research
KW - Cardiology
KW - Clinical Trials as Topic
KW - Computer Simulation
KW - Data Interpretation, Statistical
KW - Endpoint Determination
KW - Humans
KW - Kaplan-Meier Estimate
KW - Models, Statistical
KW - Proportional Hazards Models
KW - Risk Assessment
KW - Risk Factors
KW - Time Factors
KW - Treatment Outcome
KW - Journal Article
U2 - 10.1177/2047487312460518
DO - 10.1177/2047487312460518
M3 - SCORING: Journal article
C2 - 22964966
VL - 21
SP - 74
EP - 80
JO - EUR J PREV CARDIOL
JF - EUR J PREV CARDIOL
SN - 2047-4873
IS - 1
ER -