Ricardo S Osorio1, Tyler Gumb2, Elizabeth Pirraglia2, Andrew W Varga2, Shou-En Lu2, Jason Lim2, Margaret E Wohlleber2, Emma L Ducca2, Viachaslau Koushyk2, Lidia Glodzik2, Lisa Mosconi2, Indu Ayappa2, David M Rapoport2, Mony J de Leon2. 1. From the Center for Brain Health (R.S.O., T.G., E.P., M.E.W., L.G., L.M., M.J.d.L.) and Division of Pulmonary, Critical Care, and Sleep Medicine (A.W.V., J.L., E.L.D., V.K., I.A., D.M.R.), NYU School of Medicine, New York, NY; and Department of Biostatistics (S.-e.L.), Rutgers School of Public Health, Piscataway, NJ. ricardo.osorio@nyumc.org. 2. From the Center for Brain Health (R.S.O., T.G., E.P., M.E.W., L.G., L.M., M.J.d.L.) and Division of Pulmonary, Critical Care, and Sleep Medicine (A.W.V., J.L., E.L.D., V.K., I.A., D.M.R.), NYU School of Medicine, New York, NY; and Department of Biostatistics (S.-e.L.), Rutgers School of Public Health, Piscataway, NJ.
Abstract
OBJECTIVE: To examine whether the presence of sleep-disordered breathing (SDB) is associated with an earlier age at mild cognitive impairment (MCI) or Alzheimer disease (AD)-dementia onset in participants from the Alzheimer's Disease Neuroimaging Initiative (ADNI) cohort. We also examined whether continuous positive airway pressure (CPAP) use is associated with delayed onset of cognitive decline. METHODS: From the ADNI cohort, 3 subsets with progressively stringent criteria were created in a step-wise manner. Age at MCI or AD-dementia onset was the main outcome variable. Analyses were performed separately for each subset in untreated SDB+ vs SDB- and untreated SDB+ vs CPAP+ groups. Chi-square and t tests were performed to examine between-group differences. Survival analyses were performed using the Kaplan-Meier method, compared by the log-rank test, and assessed by multivariate Cox regression adjusting for potential confounders. RESULTS: SDB+ patients had a younger age at MCI onset in all subsets (MC1: 72.63 vs 83.67; MC2: 72.15 vs 83.45; MC3: 77.40 vs 89.89; p < 0.01). SDB+ patients had a younger age at AD-dementia onset only in our most conservative subset (AC3: 83.46 vs 88.13; p < 0.05). In a combined outcome analysis, SDB+ patients had a younger age at onset to MCI or AD-dementia in all subsets. In subsets 1 and 2, CPAP use delayed the age at MCI onset (CMC1: 72.63 vs 82.10; CMC2: 72.11 vs 82.10; p < 0.01). CONCLUSIONS: Consistent with our hypothesis, the presence of SDB was associated with an earlier age at cognitive decline. Our findings in CPAP+ participants suggest that CPAP treatment of SDB may delay progression of cognitive impairment.
OBJECTIVE: To examine whether the presence of sleep-disordered breathing (SDB) is associated with an earlier age at mild cognitive impairment (MCI) or Alzheimer disease (AD)-dementia onset in participants from the Alzheimer's Disease Neuroimaging Initiative (ADNI) cohort. We also examined whether continuous positive airway pressure (CPAP) use is associated with delayed onset of cognitive decline. METHODS: From the ADNI cohort, 3 subsets with progressively stringent criteria were created in a step-wise manner. Age at MCI or AD-dementia onset was the main outcome variable. Analyses were performed separately for each subset in untreated SDB+ vs SDB- and untreated SDB+ vs CPAP+ groups. Chi-square and t tests were performed to examine between-group differences. Survival analyses were performed using the Kaplan-Meier method, compared by the log-rank test, and assessed by multivariate Cox regression adjusting for potential confounders. RESULTS: SDB+ patients had a younger age at MCI onset in all subsets (MC1: 72.63 vs 83.67; MC2: 72.15 vs 83.45; MC3: 77.40 vs 89.89; p < 0.01). SDB+ patients had a younger age at AD-dementia onset only in our most conservative subset (AC3: 83.46 vs 88.13; p < 0.05). In a combined outcome analysis, SDB+ patients had a younger age at onset to MCI or AD-dementia in all subsets. In subsets 1 and 2, CPAP use delayed the age at MCI onset (CMC1: 72.63 vs 82.10; CMC2: 72.11 vs 82.10; p < 0.01). CONCLUSIONS: Consistent with our hypothesis, the presence of SDB was associated with an earlier age at cognitive decline. Our findings in CPAP+ participants suggest that CPAP treatment of SDB may delay progression of cognitive impairment.
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