Peter Ofman1,2,3,4, Peter Hoffmeister1, Danny G Kaloupek5, David R Gagnon6,7, Adelqui Peralta1, Luc Djousse2,3,8, J Michael Gaziano1,2,3,4,8,9, Catherine R Rahilly-Tierney2,3. 1. Division of Cardiology, VA Boston Healthcare System and Harvard Medical School, Boston, Massachusetts. 2. Division of Aging, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts. 3. Massachusetts Veterans Epidemiology and Research Information Center (MAVERIC), VA Boston Healthcare System, Boston, Massachusetts. 4. Division of Preventive Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts. 5. National Center for Posttraumatic Stress Disorders, VA Boston Healthcare System and Boston University School of Medicine, Boston, Massachusetts. 6. Division of Psychology, VA Boston Healthcare System and Harvard Medical School, Boston, Massachusetts. 7. Department of Biostatistics, Boston University School of Public Health, Boston, Massachusetts. 8. Geriatric Research, Education and Clinical Center (GRECC), VA Boston Healthcare System, Boston, Massachusetts. 9. Division of Cardiology, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts.
Abstract
BACKGROUND: The association between posttraumatic stress disorder (PTSD) and mortality in patients undergoing implantable cardioverter-defibrillator (ICD) placement has not been evaluated in US veterans. HYPOTHESIS: PTSD in veterans with ICD is associated with increased mortality. METHODS: We studied a retrospective cohort of 25 678 veterans who underwent ICD implantation between September 30, 2002, and December 31, 2011. Of these subjects, 3280 carried the diagnosis of PTSD prior to ICD implantation. Primary outcome was all-cause mortality between date of ICD implantation and end of follow-up (September 30, 2013). We used Cox proportional hazard models to compute multivariable adjusted hazard ratios with corresponding 95% confidence intervals for the relation between PTSD diagnosis and death following ICD placement. RESULTS: During a mean follow-up of 4.21 ± 2.62 years, 11 015 deaths were reported. The crude incidence rate of death was 87.8 and 103.9/1000 person-years for people with and without PTSD, respectively. We did not find an association between presence of PTSD before or after ICD implantation and incident death when adjusted for multiple risk factors (hazard ratio: 1.003, 95% confidence interval: 0.948-1.061). In secondary analysis, no statistically significant association was found. CONCLUSIONS: In this retrospective cohort study among more than 25 000 veterans undergoing ICD implantation, almost 13% had a diagnosis of PTSD. Subjects with PTSD were significantly younger, yet they had a higher incidence of coronary heart disease, major cardiac comorbidities, cancer, and mental health conditions. We found no association between presence of PTSD before or after ICD implantation and incident death when adjusting for all covariates.
BACKGROUND: The association between posttraumatic stress disorder (PTSD) and mortality in patients undergoing implantable cardioverter-defibrillator (ICD) placement has not been evaluated in US veterans. HYPOTHESIS: PTSD in veterans with ICD is associated with increased mortality. METHODS: We studied a retrospective cohort of 25 678 veterans who underwent ICD implantation between September 30, 2002, and December 31, 2011. Of these subjects, 3280 carried the diagnosis of PTSD prior to ICD implantation. Primary outcome was all-cause mortality between date of ICD implantation and end of follow-up (September 30, 2013). We used Cox proportional hazard models to compute multivariable adjusted hazard ratios with corresponding 95% confidence intervals for the relation between PTSD diagnosis and death following ICD placement. RESULTS: During a mean follow-up of 4.21 ± 2.62 years, 11 015 deaths were reported. The crude incidence rate of death was 87.8 and 103.9/1000 person-years for people with and without PTSD, respectively. We did not find an association between presence of PTSD before or after ICD implantation and incident death when adjusted for multiple risk factors (hazard ratio: 1.003, 95% confidence interval: 0.948-1.061). In secondary analysis, no statistically significant association was found. CONCLUSIONS: In this retrospective cohort study among more than 25 000 veterans undergoing ICD implantation, almost 13% had a diagnosis of PTSD. Subjects with PTSD were significantly younger, yet they had a higher incidence of coronary heart disease, major cardiac comorbidities, cancer, and mental health conditions. We found no association between presence of PTSD before or after ICD implantation and incident death when adjusting for all covariates.
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