Angeliki Tsapanou1, Yian Gu2, Deirdre O'Shea2, Jennifer Manly3, Nicole Schupf4, Nikolaos Scarmeas5, Yaakov Stern6. 1. Cognitive Neuroscience Division, Department of Neurology and The Taub Institute for Research on Alzheimer's disease and the Aging Brain, Columbia University College of Physicians and Surgeons, New York, New York; National and Kapodistrian University of Athens Medical School, Athens, Greece. Electronic address: at2859@cumc.columbia.edu. 2. Cognitive Neuroscience Division, Department of Neurology and The Taub Institute for Research on Alzheimer's disease and the Aging Brain, Columbia University College of Physicians and Surgeons, New York, New York. 3. The Gertrude H. Sergievsky Center, College of Physicians and Surgeons, Columbia University, New York, New York; The Department of Neurology, College of Physicians and Surgeons, Columbia University, New York, New York. 4. Cognitive Neuroscience Division, Department of Neurology and The Taub Institute for Research on Alzheimer's disease and the Aging Brain, Columbia University College of Physicians and Surgeons, New York, New York; The Gertrude H. Sergievsky Center, College of Physicians and Surgeons, Columbia University, New York, New York; The Division of Epidemiology, Joseph P. Mailman School of Public Health, Columbia University, New York, New York. 5. Cognitive Neuroscience Division, Department of Neurology and The Taub Institute for Research on Alzheimer's disease and the Aging Brain, Columbia University College of Physicians and Surgeons, New York, New York; National and Kapodistrian University of Athens Medical School, Athens, Greece; The Gertrude H. Sergievsky Center, College of Physicians and Surgeons, Columbia University, New York, New York; The Department of Neurology, College of Physicians and Surgeons, Columbia University, New York, New York. 6. Cognitive Neuroscience Division, Department of Neurology and The Taub Institute for Research on Alzheimer's disease and the Aging Brain, Columbia University College of Physicians and Surgeons, New York, New York; The Gertrude H. Sergievsky Center, College of Physicians and Surgeons, Columbia University, New York, New York; The Department of Neurology, College of Physicians and Surgeons, Columbia University, New York, New York.
Abstract
BACKGROUND: This study aimed to examine the association between self-reported sleep disordered breathing (SDB) ("awaken short of breath or with a headache") and mortality in a large and ethnically diverse group of community-dwelling elderly people. METHODS: A total of 1288 participants, 65 years and older, were examined longitudinally. Sleep problems were estimated using the Medical Outcomes Study Sleep Scale examining sleep disturbance, snoring, awaken short of breath or with a headache, sleep adequacy, and sleep somnolence. Cox regression analysis was used to examine the association between sleep problems and mortality. Age, gender, education, ethnicity, and body mass index were included as covariates. In further analyses we included hypertension, diabetes, heart disease, and stroke as additional covariates. RESULTS: The participants were followed for up to 6 years (mean = 2.9, standard deviation = 1.1), and 239 (18.6%) participants died during the follow-up. In unadjusted models, SDB at the initial visit was associated with mortality (hazard ratio [HR] = 1.37; 95% confidence interval [CI] 1.21-1.55; P < .0001). After adjusting for all the covariates, the relationship between SDB and mortality remained significant (HR = 1.48; 95% CI 1.29-1.70; P < .0001). Participants with Caribbean-Hispanic ancestry have higher risk for mortality. CONCLUSIONS: Our results suggest that SDB is a risk factor for mortality in a large and ethnically diverse group of older adults, independent of demographic and clinical factors. Further research is needed to examine the underlying mechanisms of this association.
BACKGROUND: This study aimed to examine the association between self-reported sleep disordered breathing (SDB) ("awaken short of breath or with a headache") and mortality in a large and ethnically diverse group of community-dwelling elderly people. METHODS: A total of 1288 participants, 65 years and older, were examined longitudinally. Sleep problems were estimated using the Medical Outcomes Study Sleep Scale examining sleep disturbance, snoring, awaken short of breath or with a headache, sleep adequacy, and sleep somnolence. Cox regression analysis was used to examine the association between sleep problems and mortality. Age, gender, education, ethnicity, and body mass index were included as covariates. In further analyses we included hypertension, diabetes, heart disease, and stroke as additional covariates. RESULTS: The participants were followed for up to 6 years (mean = 2.9, standard deviation = 1.1), and 239 (18.6%) participants died during the follow-up. In unadjusted models, SDB at the initial visit was associated with mortality (hazard ratio [HR] = 1.37; 95% confidence interval [CI] 1.21-1.55; P < .0001). After adjusting for all the covariates, the relationship between SDB and mortality remained significant (HR = 1.48; 95% CI 1.29-1.70; P < .0001). Participants with Caribbean-Hispanic ancestry have higher risk for mortality. CONCLUSIONS: Our results suggest that SDB is a risk factor for mortality in a large and ethnically diverse group of older adults, independent of demographic and clinical factors. Further research is needed to examine the underlying mechanisms of this association.
Authors: Dominik Linz; Holger Woehrle; Thomas Bitter; Henrik Fox; Martin R Cowie; Michael Böhm; Olaf Oldenburg Journal: Clin Res Cardiol Date: 2015-04-23 Impact factor: 5.460
Authors: Sanjay R Patel; Najib T Ayas; Mark R Malhotra; David P White; Eva S Schernhammer; Frank E Speizer; Meir J Stampfer; Frank B Hu Journal: Sleep Date: 2004-05-01 Impact factor: 5.849