Jocelynn T Owusu1, Alexandra M V Wennberg2, Calliope B Holingue1, Marian Tzuang1, Kylie D Abeson1, Adam P Spira1,3,4. 1. Department of Mental Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA. 2. Department of Health Sciences Research, Mayo Clinic, Rochester, MN, USA. 3. Department of Psychiatry and Behavioral Sciences, Johns Hopkins School of Medicine, Baltimore, MD, USA. 4. Center on Aging and Health, Johns Hopkins University, Baltimore, MD, USA.
Abstract
OBJECTIVES: To determine the association of napping intention, frequency, and duration with cognition in a nationally-representative sample of US older adults. METHODS: We performed a cross-sectional analysis of community-dwelling Medicare beneficiaries aged ≥65 years from Rounds 3 or 4 (2013-2014) of the National Health and Aging Trends Study (N = 2549). Participants reported past-month napping intention (intentional/unintentional), napping frequency (rarely/never [non-nappers], some days [infrequent nappers], most days/every day [frequent nappers]), and average nap duration (we categorized as ≤30 minutes [short]; 31-60 minutes [moderate]; and > 60 minutes [long]). Cognitive outcomes were performance on immediate and delayed word recall tests (IWR and DWR, respectively), the Clock Drawing Test (CDT), and self-rated memory (score: 1[excellent]-5[very poor]). RESULTS: After adjustment for potential confounders, unintentional nappers had poorer immediate word recall test performance than non-nappers (B = -0.23, P < 0.01) and intentional nappers (B = -0.26, P < 0.01). After further adjustment for daytime sleepiness, frequent nappers reported poorer self-rated memory than non-nappers (B = 0.14, P < 0.05). Compared with short nappers, long nappers had poorer IWR (B = -0.26, P < 0.05) and CDT scores (B = -0.17, P < 0.05). Except for the association of nap duration with IWR and CDT, these associations remained after excluding participants with dementia and/or proxy respondents. Among participants undiagnosed with dementia or proxies, moderate-duration naps were associated with better DWR than short naps (B = 0.24, P < 0.05). Neither napping intentionality nor frequency was associated with CDT performance. CONCLUSIONS: Among older adults, distinct aspects of napping are associated with cognitive performance. Prospective research, with objective measures of napping, is needed to elucidate the link between napping and cognitive trajectories.
OBJECTIVES: To determine the association of napping intention, frequency, and duration with cognition in a nationally-representative sample of US older adults. METHODS: We performed a cross-sectional analysis of community-dwelling Medicare beneficiaries aged ≥65 years from Rounds 3 or 4 (2013-2014) of the National Health and Aging Trends Study (N = 2549). Participants reported past-month napping intention (intentional/unintentional), napping frequency (rarely/never [non-nappers], some days [infrequent nappers], most days/every day [frequent nappers]), and average nap duration (we categorized as ≤30 minutes [short]; 31-60 minutes [moderate]; and > 60 minutes [long]). Cognitive outcomes were performance on immediate and delayed word recall tests (IWR and DWR, respectively), the Clock Drawing Test (CDT), and self-rated memory (score: 1[excellent]-5[very poor]). RESULTS: After adjustment for potential confounders, unintentional nappers had poorer immediate word recall test performance than non-nappers (B = -0.23, P < 0.01) and intentional nappers (B = -0.26, P < 0.01). After further adjustment for daytime sleepiness, frequent nappers reported poorer self-rated memory than non-nappers (B = 0.14, P < 0.05). Compared with short nappers, long nappers had poorer IWR (B = -0.26, P < 0.05) and CDT scores (B = -0.17, P < 0.05). Except for the association of nap duration with IWR and CDT, these associations remained after excluding participants with dementia and/or proxy respondents. Among participants undiagnosed with dementia or proxies, moderate-duration naps were associated with better DWR than short naps (B = 0.24, P < 0.05). Neither napping intentionality nor frequency was associated with CDT performance. CONCLUSIONS: Among older adults, distinct aspects of napping are associated with cognitive performance. Prospective research, with objective measures of napping, is needed to elucidate the link between napping and cognitive trajectories.
Authors: Kristine Yaffe; Alison M Laffan; Stephanie Litwack Harrison; Susan Redline; Adam P Spira; Kristine E Ensrud; Sonia Ancoli-Israel; Katie L Stone Journal: JAMA Date: 2011-08-10 Impact factor: 56.272
Authors: Daniel J Foley; Michael V Vitiello; Donald L Bliwise; Sonia Ancoli-Israel; Andrew A Monjan; James K Walsh Journal: Am J Geriatr Psychiatry Date: 2007-04 Impact factor: 4.105
Authors: Junxin Li; Pamela Z Cacchione; Nancy Hodgson; Barbara Riegel; Brendan T Keenan; Mathew T Scharf; Kathy C Richards; Nalaka S Gooneratne Journal: J Am Geriatr Soc Date: 2016-12-20 Impact factor: 5.562
Authors: Adam P Spira; Christopher Yager; Jason Brandt; Gwenn S Smith; Yun Zhou; Anil Mathur; Anil Kumar; James R Brašić; Dean F Wong; Mark N Wu Journal: SAGE Open Med Date: 2014-08-12
Authors: M L van Zuylen; A J G Meewisse; W Ten Hoope; W J Eshuis; M W Hollmann; B Preckel; S E Siegelaar; D J Stenvers; J Hermanides Journal: Anaesthesia Date: 2021-08-21 Impact factor: 12.893
Authors: Peng Li; Lei Gao; Lei Yu; Xi Zheng; Ma Cherrysse Ulsa; Hui-Wen Yang; Arlen Gaba; Kristine Yaffe; David A Bennett; Aron S Buchman; Kun Hu; Yue Leng Journal: Alzheimers Dement Date: 2022-03-17 Impact factor: 16.655
Authors: Miranda V McPhillips; Junxin Li; Nancy A Hodgson; Pamela Z Cacchione; Victoria V Dickson; Nalaka S Gooneratne; Barbara Riegel Journal: Gerontol Geriatr Med Date: 2020-11-03