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

BMC Medicine

Research Article

Johan Denollet¹  Richard P Steeds²  Ronald C Kessler³  Edwin R van den Heuvel⁴  Robert M Carney⁵  Kenneth E Freedland⁵  Chiara Rafanelli⁶  Matteo Anselmino⁷  Louise Pilote⁸  Frank Doyle⁹  Sherry L Grace^1,10  Peter de Jonge^1,11  Hanna M van Loo^1,11  Robert A Schoevers^1,11  Annelieke M Roest^1,11  Kapil Parakh^1,12  Seyed H Hosseini^1,13  Hiroshi Sato^1,14 

[1]CoRPS-Center of Research on Psychology in Somatic diseases, Tilburg University, Warandelaan 2, 5000, Tilburg, LE, The Netherlands

[2]Department of Cardiology, Queen Elizabeth Hospital, Edgbaston, B15 2TH, Birmingham, West Midlands, UK

[3]Department of Health Care Policy, Harvard Medical School, 180 Longwood Avenue, 02115, Boston, Massachusetts, USA

[4]Department of Mathematics and Computer Science, Eindhoven University of Technology, Den Dolech 2, 5612, Eindhoven, AZ, The Netherlands

[5]Department of Psychiatry, Washington University School of Medicine, 4320 Forest Park Avenue, 63108, St. Louis, Missouri, USA

[6]Department of Psychology, University of Bologna, Viale Berti Pichat 5, 40127, Bologna, Italy

[7]Division of Cardiology, Department of Medical Sciences, Città della Salute e della Scienza, University of Turin, C.so A.M. Dogliotti, 14, 10126, Turin, Italy

[8]Division of General Internal Medicine, McGill University, McGill University Health Centre, 687 Pine Avenue West, V Building, V2.17, H3A 1A1, Montreal, Canada

[9]Division of Population Health Sciences (Psychology), Royal College of Surgeons in Ireland, 123 St Stephen’s Green, 2, Dublin, Ireland

[10]Faculty of Health, York University and University Health Network, 368 Norman Bethune, 4700 Keele Street, M3J 1P3, Toronto, Canada

[11]Interdisciplinary Center Psychopathology and Emotion Regulation (ICPE), Department of Psychiatry, University of Groningen, University Medical Center Groningen, Hanzeplein 1, 9700, Groningen, RB, The Netherlands

[12]John Hopkins School of Medicine, John Hopkins Bloomberg School of Public Health, John Hoplins Bayview Medical Center, 4940 Eastern Avenue, 21224, Baltimore, Maryland, USA

[13]Psychiatry and Behavioral Sciences Research Center, Addiction Institute, Mazandaran University of Medical Sciences, Psychosomatic department, Imam hospital, Sari, Iran

[14]School of Human Welfare Studies, Kwansei Gakuin University, 1-1-155, Uegahara, 662-8501, Nishinomiya, Hyogo, Japan

关键词: All-cause mortality;    Interactions;    Myocardial infarction;    Prediction;    Risk factors;    Sex;   

DOI  :  10.1186/s12916-014-0242-y

 received in 2014-09-12, accepted in 2014-11-21,  发布年份 2014

来源: Springer

【 摘 要 】

BackgroundAlthough 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.MethodsProspective 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.ResultsLasso 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 <50) had a higher risk for all-cause mortality than men in the same age group (HR 0.7 vs. 0.4), while men had a higher risk than women if they had depression (HR 1.4 vs. 1.1) or a low left ventricular ejection fraction (HR 1.7 vs. 1.3). Predictive accuracy of the Cox model was better for men than for women (area under the curves: 0.770 vs. 0.754).ConclusionsInteractions of well-known risk factors for all-cause mortality after myocardial infarction suggested important sex differences. This study gives rise to a further exploration of prediction models to improve risk assessment for men and women after myocardial infarction.

【 授权许可】

CC BY   
© van Loo et al.; licensee BioMed Central. 2014