A Statistical Model for Risk Stratification on the Basis of Left Ventricular Ejection Fraction and Heart-Rate Turbulence
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vor 25 Jahren
The MPIP data set was used to obtain a model for mortality risk
stratification of acute myocardial infarction patients. The
predictors heart rate turbulence (HRT) and left-ventricular
ejection fraction (LVEF) were employed. HRT was a categorical
variable of three levels; LVEF was continuous and its influence on
the relative risk was explained by the natural logarithm function
(found using fractional polynomials). Cox - PH model with HRT and
lnLVEF was constructed and used for risk stratification. The model
can be used to divide the patients into two or more groups
according to mortality risk. It also describes the relationship
between risk and predictors by a (continuous) function, which
allows the calculation of individual mortality risk.
stratification of acute myocardial infarction patients. The
predictors heart rate turbulence (HRT) and left-ventricular
ejection fraction (LVEF) were employed. HRT was a categorical
variable of three levels; LVEF was continuous and its influence on
the relative risk was explained by the natural logarithm function
(found using fractional polynomials). Cox - PH model with HRT and
lnLVEF was constructed and used for risk stratification. The model
can be used to divide the patients into two or more groups
according to mortality risk. It also describes the relationship
between risk and predictors by a (continuous) function, which
allows the calculation of individual mortality risk.
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