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This study investigated associations between nocturnal sleep and daytime nap durations with total life expectancy (TLE), and life expectancy with and without cardiovascular disease (CVD) among older adults in Singapore using representative longitudinal data across three waves from 2009-2015 (n=3452, age ≥60). Multistate life table methods estimated TLE and CVD-free and CVD-containing life expectancy after adjustment for socio-demographic and health factors.",{"@graph":69,"@context":122},[70,84,105],{"@type":71,"itemListElement":72},"BreadcrumbList",[73,77,79,82],{"item":74,"name":75,"@type":76,"position":8},"https://docshare.wps.com","Home","ListItem",{"item":78,"name":9,"@type":76,"position":14},"https://docshare.wps.com/document/",{"item":80,"name":40,"@type":76,"position":81},"https://docshare.wps.com/document/research-report/",3,{"item":83,"name":65,"@type":76,"position":19},"https://docshare.wps.com/document/association-of-sleep-and-nap-duration-with-cardiovascular-disease-free-life-expectancy-among-older-adults/427158/",{"url":83,"name":65,"@type":85,"image":86,"author":91,"headline":65,"publisher":94,"fileFormat":97,"inLanguage":63,"description":67,"dateModified":98,"datePublished":99,"encodingFormat":97,"isAccessibleForFree":100,"interactionStatistic":101},"DigitalDocument",{"url":87,"@type":88,"width":89,"height":90},"https://docshare.wps.com/thumbnails/association-of-sleep-and-nap-duration-with-cardiovascular-disease-free-life-expectancy-among-older-adults/427158.png","ImageObject",300,407,{"name":92,"@type":93},"Jiven","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-10-12","2026-09-29",true,{"@type":102,"interactionType":103,"userInteractionCount":19},"InteractionCounter",{"@type":104},"ViewAction",{"@type":106,"mainEntity":107},"FAQPage",[108,114,118],{"name":109,"@type":110,"acceptedAnswer":111},"How did the study measure life expectancy outcomes in older adults?","Question",{"text":112,"@type":113},"It used multistate life table methods to estimate total life expectancy (TLE) and life expectancy with and without cardiovascular disease (CVD) across ages 60, 70, and 80.","Answer",{"name":115,"@type":110,"acceptedAnswer":116},"What did the results show about long versus recommended nocturnal sleep?",{"text":117,"@type":113},"At ages 60, 70, and 80 there was no difference in TLE or CVD-free life expectancy, but long sleep was associated with shorter life expectancy with CVD.",{"name":119,"@type":110,"acceptedAnswer":120},"Did nap duration have different effects on life expectancy with cardiovascular disease?",{"text":121,"@type":113},"Life expectancy with CVD and the proportion of remaining life with and without CVD did not differ by nap duration, while long naps were associated with shorter TLE and CVD-free life expectancy versus none or short naps.","https://schema.org",{"og:url":83,"og:type":124,"og:title":65,"og:site_name":95,"og:description":67},"article",{"robots":126,"canonical":83},"index,follow",{"doc_id":128,"site_id":62},427158,1790794853,{"code":4,"msg":5,"data":131},{"doc_id":128,"user_id":132,"nickname":92,"user_avatar":133,"doc_module":4,"category_id":39,"category_name":40,"doc_title":65,"doc_description":67,"doc_content":134,"file_id":135,"file_url":136,"file_type":137,"file_size":138,"view_count":19,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":8,"language":139,"language_code":63,"site_id":62,"html_lang":63,"table_of_contents":140,"faqs":141,"seo_title":142,"seo_description":67,"update_tm":143,"read_time":81},1099513958607,"https://ap-avatar.wpscdn.com/avatar/100002390cf8733938c?x-image-process=image/resize,m_fixed,w_180,h_180&k=1778829742770036399","230 Innovation in Aging, 2025, Vol. 9, No. S2  \nAbstract citation ID: igaf122.768  \nASSOCIATION OF SLEEP AND NAP DURATION WITH  \nCARDIOVASCULAR DISEASE-FREE LIFE EXPECTANCY  \nAMONG OLDER ADULTS  \nRuoxuan Rosalyn Li1, Abhijit Visaria1, Stefan Ma2, and Rahul Malhotra1, 1. Duke-NUS Medical School, Singapore, Singapore, 2. Singapore Ministry of Health, Singapore, Singapore  \nSleep and nap durations have been linked with many health outcomes, yet their impact on health expectancy remains understudied. We investigated the association of nocturnal sleep and daytime nap durations with total life expectancy (TLE), and life expectancy (LE) with and without cardiovascular diseases  \n(CVD), among older adults in Singapore. Representative longitudinal data (three waves; 2009-2015) of community-dwelling Singapore residents aged ≥60 years (n = 3452) was used. We applied multistate life table methods to estimate TLE, and LE with and without CVD, by sleep duration and nap duration, adjusting for a range of socio-demographic and health variables.  \nAt ages 60, 70, and 80 years, there was no difference in TLE or LE without CVD among those with short, recommended and long sleep. However, long (versus recommended) sleep was associated with a shorter LE with CVD. At ages 60 and 70, the proportion of remaining life without CVD was higher, and with CVD was lower, among those with long (versus recommended) sleep. At ages 60, 70, and 80 years, long nap was associated with a shorter TLE and LE without CVD, versus none or short nap.  \nLE with CVD or proportion of remaining life with and without CVD did not differ by nap duration. Our findings reflect the complex relationship between sleep and nap durations and life and health expectancy outcomes. Further research is needed to elucidate underlying mechanisms and guide recommendations for optimal nocturnal sleep and daytime nap durations in older adults.","cbCaifQtyiq8D8ni","https://ap.wps.com/l/cbCaifQtyiq8D8ni","pdf",257823,"English","# Abstract\n## Study design and data\n## Methods\n## Key findings\n## Implications and future research","[{\"question\":\"How did the study measure life expectancy outcomes in older adults?\",\"answer\":\"It used multistate life table methods to estimate total life expectancy (TLE) and life expectancy with and without cardiovascular disease (CVD) across ages 60, 70, and 80.\"},{\"question\":\"What did the results show about long versus recommended nocturnal sleep?\",\"answer\":\"At ages 60, 70, and 80 there was no difference in TLE or CVD-free life expectancy, but long sleep was associated with shorter life expectancy with CVD.\"},{\"question\":\"Did nap duration have different effects on life expectancy with cardiovascular disease?\",\"answer\":\"Life expectancy with CVD and the proportion of remaining life with and without CVD did not differ by nap duration, while long naps were associated with shorter TLE and CVD-free life expectancy versus none or short naps.\"}]","ASSOCIATION OF SLEEP AND NAP DURATION WITH CARDIOVASCULAR DISEASE-FREE LIFE EXPECTANCY AMONG OLDER ADULTS | PDF",1790643037]