Stephanie M Toth-Manikowski1, Wei Yang2, Lawrence Appel3, Jing Chen4, Rajat Deo5, Anne Frydrych1, Marie Krousel-Wood4, Mahboob Rahman6, Sylvia E Rosas7, Daohang Sha2, Jackson Wright6, Martha L Daviglus1, Alan S Go8, James P Lash1, Ana C Ricardo9. 1. Department of Medicine, University of Illinois at Chicago, Chicago, IL. 2. Center for Clinical Epidemiology & Biostatistics, University of Pennsylvania, Philadelphia, PA. 3. Welch Center for Prevention, Epidemiology and Clinical Research, Johns Hopkins, Baltimore, MD. 4. Department of Medicine, Department of Epidemiology, Tulane University, New Orleans, LA. 5. Department of Medicine, University of Pennsylvania, Philadelphia, PA. 6. Department of Medicine, Case Western Reserve University, Cleveland, OH. 7. Kidney and Hypertension Unit, Joslin Diabetes Center and Harvard Medical School, Boston, MA. 8. Division of Research, Kaiser Permanente Northern California, Oakland, CA. 9. Department of Medicine, University of Illinois at Chicago, Chicago, IL. Electronic address: aricar2@uic.edu.
Abstract
RATIONALE & OBJECTIVE: Cardiovascular events are less common in women than men in general populations; however, studies in chronic kidney disease (CKD) are less conclusive. We evaluated sex-related differences in cardiovascular events and death in adults with CKD. STUDY DESIGN: Prospective cohort study. SETTING & PARTICIPANTS: 1,778 women and 2,161 men enrolled in the Chronic Renal Insufficiency Cohort (CRIC). EXPOSURE: Sex (women vs men). OUTCOME: Atherosclerotic composite outcome (myocardial infarction, stroke, or peripheral artery disease), incident heart failure, cardiovascular death, and all-cause death. ANALYTICAL APPROACH: Cox proportional hazards regression. RESULTS: During a median follow-up period of 9.6 years, we observed 698 atherosclerotic events (women, 264; men, 434), 762 heart failure events (women, 331; men, 431), 435 cardiovascular deaths (women, 163; men, 274), and 1,158 deaths from any cause (women, 449; men, 709). In analyses adjusted for sociodemographic, clinical, and metabolic parameters, women had a lower risk of atherosclerotic events (HR, 0.71 [95% CI, 0.57-0.88]), heart failure (HR, 0.76 [95% CI, 0.62-0.93]), cardiovascular death (HR, 0.55 [95% CI, 0.42-0.72]), and death from any cause (HR, 0.58 [95% CI, 0.49-0.69]) compared with men. These associations remained statistically significant after adjusting for cardiac and inflammation biomarkers. LIMITATIONS: Assessment of sex hormones, which may play a role in cardiovascular risk, was not included. CONCLUSIONS: In a large, diverse cohort of adults with CKD, compared with men, women had lower risks of cardiovascular events, cardiovascular mortality, and mortality from any cause. These differences were not explained by measured cardiovascular risk factors.
RATIONALE & OBJECTIVE: Cardiovascular events are less common in women than men in general populations; however, studies in chronic kidney disease (CKD) are less conclusive. We evaluated sex-related differences in cardiovascular events and death in adults with CKD. STUDY DESIGN: Prospective cohort study. SETTING & PARTICIPANTS: 1,778 women and 2,161 men enrolled in the Chronic Renal Insufficiency Cohort (CRIC). EXPOSURE: Sex (women vs men). OUTCOME: Atherosclerotic composite outcome (myocardial infarction, stroke, or peripheral artery disease), incident heart failure, cardiovascular death, and all-cause death. ANALYTICAL APPROACH: Cox proportional hazards regression. RESULTS: During a median follow-up period of 9.6 years, we observed 698 atherosclerotic events (women, 264; men, 434), 762 heart failure events (women, 331; men, 431), 435 cardiovascular deaths (women, 163; men, 274), and 1,158 deaths from any cause (women, 449; men, 709). In analyses adjusted for sociodemographic, clinical, and metabolic parameters, women had a lower risk of atherosclerotic events (HR, 0.71 [95% CI, 0.57-0.88]), heart failure (HR, 0.76 [95% CI, 0.62-0.93]), cardiovascular death (HR, 0.55 [95% CI, 0.42-0.72]), and death from any cause (HR, 0.58 [95% CI, 0.49-0.69]) compared with men. These associations remained statistically significant after adjusting for cardiac and inflammation biomarkers. LIMITATIONS: Assessment of sex hormones, which may play a role in cardiovascular risk, was not included. CONCLUSIONS: In a large, diverse cohort of adults with CKD, compared with men, women had lower risks of cardiovascular events, cardiovascular mortality, and mortality from any cause. These differences were not explained by measured cardiovascular risk factors.
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