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This study examines associations between indoor environment and health outcomes—sleep, mental, and cognitive health—in community-dwelling older adults without dementia using baseline data from an ongoing RCT. Indoor exposure combines self-reported comfort (light, air quality, temperature, noise) with continuous 24/7 sensor measures (PM2.5, CO2, NOx, TVOCs, humidity, temperature, light, sound). Results (n=39) link lower comfort with poorer sleep and mental health and reduced cognitive function; specific sensor signals show stronger evening light, CO2, and humidity relations to stress, delayed recall, and insomnia severity.",{"@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/home-environmental-factors-associated-with-health-outcomes-in-community-dwelling-older-adults/427960/",{"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/home-environmental-factors-associated-with-health-outcomes-in-community-dwelling-older-adults/427960.png","ImageObject",300,407,{"name":92,"@type":93},"Melati","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-10-19","2026-09-29",true,{"@type":102,"interactionType":103,"userInteractionCount":52},"InteractionCounter",{"@type":104},"ViewAction",{"@type":106,"mainEntity":107},"FAQPage",[108,114,118],{"name":109,"@type":110,"acceptedAnswer":111},"What health outcomes does the study focus on?","Question",{"text":112,"@type":113},"It evaluates sleep health, mental health, and cognitive function. Sleep is assessed with both self-reports and objective devices, while cognitive and mental health are measured using validated scales and indices.","Answer",{"name":115,"@type":110,"acceptedAnswer":116},"How is indoor environmental exposure measured?",{"text":117,"@type":113},"Indoor environment includes self-reported comfort covering light, air quality, temperature, and noise, plus continuous 24/7 sensor-based measurements of pollutants and environmental conditions such as PM2.5, CO2, NOx, TVOCs, humidity, temperature, light, and sound.",{"name":119,"@type":110,"acceptedAnswer":120},"What key associations were found in the baseline analysis?",{"text":121,"@type":113},"Lower perceived environmental comfort was associated with worse sleep quality, higher insomnia severity, poorer mental health, and lower cognitive performance. In addition, evening light related to higher stress, higher CO2 related to poorer delayed recall, and higher humidity related to increased insomnia severity.","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},427960,1790694990,{"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":52,"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},962085570644,"https://ap-avatar.wpscdn.com/davatar_994ba38a5ba835b3df7d355c54d3ed8d","Innovation in Aging, 2025, Vol. 9, No. S2 917  \nAbstract citation ID: igaf122.3098  \nHOME ENVIRONMENTAL FACTORS ASSOCIATED  \nWITH HEALTH OUTCOMES IN  \nCOMMUNITY-DWELLING OLDER ADULTS  \nYoungmin Cho1, Jing Huang1, Jiaying Li1, Claire Wang1, Russell Calderon2, Michelle Liu1, Katherine Ornstein1, and Junxin Li1, 1. Johns Hopkins University, Baltimore, Maryland, United States, 2. Johns Hopkins School of Medicine, Baltimore, Maryland, United States  \nOlder adults spend a substantial proportion of their time indoors, making them particularly vulnerable to home environmental factors. However, existing research has focused on outdoor exposures near residential addresses, leaving a critical gap in understanding the scope of indoor environmental impacts on aging. We investigate the associations between indoor environment and health outcomes (sleep, mental, and cognitive health) in community-dwelling older adults without dementia, using the baseline data from an ongoing RCT. Indoor environment includes self-reported environmental comfort—encompassing light, air quality, temperature, and noise—and continuous 24/7 sensor-based measurements of air pollution (PM2.5, CO2, NOx, and TVOCs), humidity, temperature, light, and sound levels.  \nSleep health was assessed via self-reported measures (Pittsburgh sleep quality index [PSQI], and insomnia severity) and objective measurement devices—ActiGraph and ambulatory EEG.  \nCognitive function was evaluated using the Everyday cognition scale (ECog) and the NIH Toolbox, while mental health was measured through the Geriatric depression scale, Geriatric anxiety scale, and Perceived stress scale. Our findings (n =39) showed lower perceived environmental comfort was significantly associated with poorer sleep quality (PSQI, r = 0.36), increased insomnia severity (r = 0.32), worsened mental health (depression, r = 0.34; anxiety, r = 0.36; stress, r = 0.35), and lower cognitive function (ECog, r = 0.32) . Additionally, increased evening light exposure correlated with higher stress (r = 0.75), higher CO2 levels were associated with poorer delayed recall (r=-0.64), and higher humidity was linked to increased insomnia severity (r = 0.64). These findings highlight the need for targeted interventions to improve indoor environmental conditions, which may mitigate risks to sleep, mental, and cognitive health in community-dwelling older adults.","cbCaipRKn5MxXBOA","https://ap.wps.com/l/cbCaipRKn5MxXBOA","pdf",47761,"English","# Background\n# Methods\n## Indoor environment measures\n## Sleep assessment\n## Cognitive and mental health assessment\n# Results\n# Implications for interventions","[{\"question\":\"What health outcomes does the study focus on?\",\"answer\":\"It evaluates sleep health, mental health, and cognitive function. Sleep is assessed with both self-reports and objective devices, while cognitive and mental health are measured using validated scales and indices.\"},{\"question\":\"How is indoor environmental exposure measured?\",\"answer\":\"Indoor environment includes self-reported comfort covering light, air quality, temperature, and noise, plus continuous 24/7 sensor-based measurements of pollutants and environmental conditions such as PM2.5, CO2, NOx, TVOCs, humidity, temperature, light, and sound.\"},{\"question\":\"What key associations were found in the baseline analysis?\",\"answer\":\"Lower perceived environmental comfort was associated with worse sleep quality, higher insomnia severity, poorer mental health, and lower cognitive performance. In addition, evening light related to higher stress, higher CO2 related to poorer delayed recall, and higher humidity related to increased insomnia severity.\"}]","HOME ENVIRONMENTAL FACTORS ASSOCIATED WITH HEALTH OUTCOMES IN COMMUNITY-DWELLING OLDER ADULTS | PDF",1790645304]