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Many intervention studies rely on facility-level lighting metrics, which may not reflect the individual dosage residents experience across room location and daily routines. This study compared facility-level (bedroom, hallway, dining room; twice weekly) versus individual-level exposure using a wearable light sensor (LYS button) worn continuously for one week, reporting significant differences and recommending individual sensors for more precise intervention evaluation.",{"@graph":69,"@context":127},[70,84,106],{"@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":35,"@type":76,"position":81},"https://docshare.wps.com/document/healthcare/",3,{"item":83,"name":65,"@type":76,"position":19},"https://docshare.wps.com/document/measuring-light-exposure-in-nursing-home-residents-with-dementia-facility-level-measures-vs-wearable-sensor/425364/",{"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/measuring-light-exposure-in-nursing-home-residents-with-dementia-facility-level-measures-vs-wearable-sensor/425364.png","ImageObject",300,407,{"name":92,"@type":93},"Oliver","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-10-30","2026-09-28",true,{"@type":102,"interactionType":103,"userInteractionCount":105},"InteractionCounter",{"@type":104},"ViewAction",12,{"@type":107,"mainEntity":108},"FAQPage",[109,115,119,123],{"name":110,"@type":111,"acceptedAnswer":112},"Why is measuring light exposure important for nursing home residents with dementia?","Question",{"text":113,"@type":114},"Adequate circadian lighting can positively influence circadian health, mood, and behavioral symptoms. Residents with dementia in nursing homes often face insufficient light exposure, making measurement essential.","Answer",{"name":116,"@type":111,"acceptedAnswer":117},"How did the study measure lighting exposure at the facility and individual levels?",{"text":118,"@type":114},"Facility-level lighting was measured twice a week in the bedroom, hallway, and dining room, tailored to residents’ routines. Individual exposure was measured using a wearable light sensor (LYS button) worn on the shoulder/collar continuously for one week.",{"name":120,"@type":111,"acceptedAnswer":121},"What were the main findings when comparing facility-level and wearable sensor measures?",{"text":122,"@type":114},"Paired t-tests showed significant differences between facility-level manual measures and individual wearable sensor readings in each room category and overall (p \u003C 0.001). The average facility-level intensities were much lower than the average individual exposure (e.g., 110/114/85 lux vs. 268 lux).",{"name":124,"@type":111,"acceptedAnswer":125},"What does the study recommend for future lighting intervention research?",{"text":126,"@type":114},"Future research should consider using individual light sensors to design and evaluate lighting interventions more precisely, rather than relying solely on facility-level measures.","https://schema.org",{"og:url":83,"og:type":129,"og:title":65,"og:site_name":95,"og:description":67},"article",{"robots":131,"canonical":83},"index,follow",{"doc_id":133,"site_id":62},425364,1790763367,{"code":4,"msg":5,"data":136},{"doc_id":133,"user_id":137,"nickname":92,"user_avatar":138,"doc_module":4,"category_id":34,"category_name":35,"doc_title":65,"doc_description":67,"doc_content":139,"file_id":140,"file_url":141,"file_type":142,"file_size":143,"view_count":105,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":8,"language":144,"language_code":63,"site_id":62,"html_lang":63,"table_of_contents":145,"faqs":146,"seo_title":147,"seo_description":67,"update_tm":148,"read_time":81,"preview_page_count":4},8796095461610,"https://ap-avatar.wpscdn.com/davatar_276721f389ce27ea32af1340a28f341c","974 Innovation in Aging, 2025, Vol. 9, No. S2  \nAbstract citation ID: igaf122.3289  \nMEASURING LIGHT EXPOSURE IN NURSING HOME RESIDENTS WITH DEMENTIA: FACILITY-LEVEL  \nMEASURES VS WEARABLE SENSOR  \nYing-Ling Jao1, Yo-Jen Liao2, Diane Berish1, Julian Wang1, Margaret Calkins2, Yun-Han Kuan3, Light Ndurue1, and Marie Boltz1, 1. The Pennsylvania State University, University Park, Pennsylvania, United States, 2. IDEAS Institute, Cleveland Heights, Ohio, United States, 3. Far Eastern Memorial Hospital, New Taipei City, Taipei, Taiwan (Republic of China)  \nAdequate lighting exposure has positive impacts on circadian health, mood, and behavioral symptoms in people with dementia. However, nursing home (NH) residents with dementia often experience insufficient circadian lighting exposure. Increasing research has investigated lighting interventions in this population with mixed results. Most intervention studies evaluated outcomes based on facility-level lighting measures without considering the individual’s actual light exposure. However, light exposures can vary widely between residents, depending on room location, personal behavior, and daily routine. Wearable light sensors allow us to quantify the dosage each individual receives more precisely. This study examined the differences in light intensity (lux) between facility-level and individual-level measures among NH residents with ADRD. The facility-level measure was conducted twice a week in the bedroom, hallway, and dining room, tailored based on individuals’ routines. Individual lighting exposure was measured using a wearable light sensor, LYS button, worn on residents’ shoulder/collar 24 hours/day continuously for one week. Descriptive statistics and paired t-tests were performed. A total of 29 residents (average age: 87 years; 72.4% female) were recruited from two NHs. The average facility-level lighting intensities from the two NHs were 110, 114, and 85 lux in the bedroom, hallway, and dining room, respectively. In contrast, residents’ individual lighting exposure averaged 268 lux. Paired t-tests revealed significant differences between facility-level manual measures and the individual wearable sensor in the bedroom, hallway, dining room, and the overall facility (p \u003C 0.001) . Future research should consider using individual light sensors for a more precise design and evaluation of lighting interventions.","cbCaicVtaUzOQkpY","https://ap.wps.com/l/cbCaicVtaUzOQkpY","pdf",48023,"English","# Background\n# Methods\n## Facility-level lighting measures\n## Wearable sensor measurement\n# Results\n# Implications for future research","[{\"question\":\"Why is measuring light exposure important for nursing home residents with dementia?\",\"answer\":\"Adequate circadian lighting can positively influence circadian health, mood, and behavioral symptoms. Residents with dementia in nursing homes often face insufficient light exposure, making measurement essential.\"},{\"question\":\"How did the study measure lighting exposure at the facility and individual levels?\",\"answer\":\"Facility-level lighting was measured twice a week in the bedroom, hallway, and dining room, tailored to residents’ routines. Individual exposure was measured using a wearable light sensor (LYS button) worn on the shoulder/collar continuously for one week.\"},{\"question\":\"What were the main findings when comparing facility-level and wearable sensor measures?\",\"answer\":\"Paired t-tests showed significant differences between facility-level manual measures and individual wearable sensor readings in each room category and overall (p \\u003c 0.001). The average facility-level intensities were much lower than the average individual exposure (e.g., 110/114/85 lux vs. 268 lux).\"},{\"question\":\"What does the study recommend for future lighting intervention research?\",\"answer\":\"Future research should consider using individual light sensors to design and evaluate lighting interventions more precisely, rather than relying solely on facility-level measures.\"}]","MEASURING LIGHT EXPOSURE IN NURSING HOME RESIDENTS WITH DEMENTIA - FACILITY-LEVEL MEASURES VS WEARABLE SENSOR | PDF",1790637056]