Sex dependent risk factors for mortality after myocardial infarction : individual patient data meta-analysis

H.M. Loo, van, E.R. Heuvel, van den, R.A. Schoevers, M. Anselmino, R.M. Carney, J. Denollet, F. Doyle, K.E. Freedland, S.L. Grace, S.H. Hosseini, K. Parakh, L. Pilote, C. Rafanelli, A.M. Roest, H. Sato, R.P. Steeds, R.C. Kessler, P. Jonge, de

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Background. Although a number of risk factors are known to predict mortality within the first years after myocardial infarction, little is known about interactions between risk factors, whereas these could contribute to accurate differentiation of patients with higher and lower risk for mortality. This study explored the effect of interactions of risk factors on all-cause mortality in patients with myocardial infarction based on individual patient data meta-analysis. Methods. Prospective data for 10,512 patients hospitalized for myocardial infarction were derived from 16 observational studies (MINDMAPS). Baseline measures included a broad set of risk factors for mortality such as age, sex, heart failure, diabetes, depression, and smoking. All two-way and three-way interactions of these risk factors were included in Lasso regression analyses to predict time-to-event related all-cause mortality. The effect of selected interactions was investigated with multilevel Cox regression models. Results. Lasso regression selected five two-way interactions, of which four included sex. The addition of these interactions to multilevel Cox models suggested differential risk patterns for males and females. Younger women (age
Original languageEnglish
Pages (from-to)242/1-9
Number of pages9
JournalBMC Medicine
Publication statusPublished - 2015


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