Differences in Life Space Activity Patterns Between Older Adults With Mild Cognitive Impairment Living Alone or as a Couple: Cohort Study Using Passive Activity Sensing

BackgroundMeasuring function with passive in-home sensors has the advantages of real-world, objective, continuous, and unobtrusive measurement. However, previous studies have focused on 1-person homes only, which limits their generalizability. ObjectiveThis study...

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Main Authors: Marijn Muurling, Wan-Tai M Au-Yeung, Zachary Beattie, Chao-Yi Wu, Hiroko Dodge, Nathaniel K Rodrigues, Sarah Gothard, Lisa C Silbert, Lisa L Barnes, Joel S Steele, Jeffrey Kaye
Format: Article
Language:English
Published: JMIR Publications 2023-10-01
Series:JMIR Aging
Online Access:https://aging.jmir.org/2023/1/e45876
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author Marijn Muurling
Wan-Tai M Au-Yeung
Zachary Beattie
Chao-Yi Wu
Hiroko Dodge
Nathaniel K Rodrigues
Sarah Gothard
Lisa C Silbert
Lisa L Barnes
Joel S Steele
Jeffrey Kaye
author_facet Marijn Muurling
Wan-Tai M Au-Yeung
Zachary Beattie
Chao-Yi Wu
Hiroko Dodge
Nathaniel K Rodrigues
Sarah Gothard
Lisa C Silbert
Lisa L Barnes
Joel S Steele
Jeffrey Kaye
author_sort Marijn Muurling
collection DOAJ
description BackgroundMeasuring function with passive in-home sensors has the advantages of real-world, objective, continuous, and unobtrusive measurement. However, previous studies have focused on 1-person homes only, which limits their generalizability. ObjectiveThis study aimed to compare the life space activity patterns of participants living alone with those of participants living as a couple and to compare people with mild cognitive impairment (MCI) with cognitively normal participants in both 1- and 2-person homes. MethodsPassive infrared motion sensors and door contact sensors were installed in 1- and 2-person homes with cognitively normal residents or residents with MCI. A home was classified as an MCI home if at least 1 person in the home had MCI. Time out of home (TOOH), independent life space activity (ILSA), and use of the living room, kitchen, bathroom, and bedroom were calculated. Data were analyzed using the following methods: (1) daily averages over 4 weeks, (2) hourly averages (time of day) over 4 weeks, or (3) longitudinal day-to-day changes. ResultsIn total, 129 homes with people living alone (n=27, 20.9%, MCI and n=102, 79.1%, no-MCI homes) and 52 homes with people living as a couple (n=24, 46.2%, MCI and n=28, 53.8%, no-MCI homes) were included with a mean follow-up of 719 (SD 308) days. Using all 3 analysis methods, we found that 2-person homes showed a shorter TOOH, a longer ILSA, and shorter living room and kitchen use. In MCI homes, ILSA was higher in 2-person homes but lower in 1-person homes. The effects of MCI status on other outcomes were only found when using the hourly averages or longitudinal day-to-day changes over time, and they depended on the household type (alone vs residing as a couple). ConclusionsThis study shows that in-home behavior is different when a participant is living alone compared to when they are living as a couple, meaning that the household type should be considered when studying in-home behavior. The effects of MCI status can be detected with in-home sensors, even in 2-person homes, but data should be analyzed on an hour-to-hour basis or longitudinally.
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spelling doaj.art-b6917ea57e594462ab91eed430557a3b2023-10-11T13:16:21ZengJMIR PublicationsJMIR Aging2561-76052023-10-016e4587610.2196/45876Differences in Life Space Activity Patterns Between Older Adults With Mild Cognitive Impairment Living Alone or as a Couple: Cohort Study Using Passive Activity SensingMarijn Muurlinghttps://orcid.org/0000-0001-9397-4602Wan-Tai M Au-Yeunghttps://orcid.org/0000-0003-0198-4630Zachary Beattiehttps://orcid.org/0000-0002-4844-7122Chao-Yi Wuhttps://orcid.org/0000-0002-2187-6509Hiroko Dodgehttps://orcid.org/0000-0001-7290-8307Nathaniel K Rodrigueshttps://orcid.org/0009-0008-8790-1931Sarah Gothardhttps://orcid.org/0009-0008-6799-2688Lisa C Silberthttps://orcid.org/0000-0002-4525-0068Lisa L Barneshttps://orcid.org/0000-0002-0072-9817Joel S Steelehttps://orcid.org/0009-0008-4127-5664Jeffrey Kayehttps://orcid.org/0000-0002-9971-3478 BackgroundMeasuring function with passive in-home sensors has the advantages of real-world, objective, continuous, and unobtrusive measurement. However, previous studies have focused on 1-person homes only, which limits their generalizability. ObjectiveThis study aimed to compare the life space activity patterns of participants living alone with those of participants living as a couple and to compare people with mild cognitive impairment (MCI) with cognitively normal participants in both 1- and 2-person homes. MethodsPassive infrared motion sensors and door contact sensors were installed in 1- and 2-person homes with cognitively normal residents or residents with MCI. A home was classified as an MCI home if at least 1 person in the home had MCI. Time out of home (TOOH), independent life space activity (ILSA), and use of the living room, kitchen, bathroom, and bedroom were calculated. Data were analyzed using the following methods: (1) daily averages over 4 weeks, (2) hourly averages (time of day) over 4 weeks, or (3) longitudinal day-to-day changes. ResultsIn total, 129 homes with people living alone (n=27, 20.9%, MCI and n=102, 79.1%, no-MCI homes) and 52 homes with people living as a couple (n=24, 46.2%, MCI and n=28, 53.8%, no-MCI homes) were included with a mean follow-up of 719 (SD 308) days. Using all 3 analysis methods, we found that 2-person homes showed a shorter TOOH, a longer ILSA, and shorter living room and kitchen use. In MCI homes, ILSA was higher in 2-person homes but lower in 1-person homes. The effects of MCI status on other outcomes were only found when using the hourly averages or longitudinal day-to-day changes over time, and they depended on the household type (alone vs residing as a couple). ConclusionsThis study shows that in-home behavior is different when a participant is living alone compared to when they are living as a couple, meaning that the household type should be considered when studying in-home behavior. The effects of MCI status can be detected with in-home sensors, even in 2-person homes, but data should be analyzed on an hour-to-hour basis or longitudinally.https://aging.jmir.org/2023/1/e45876
spellingShingle Marijn Muurling
Wan-Tai M Au-Yeung
Zachary Beattie
Chao-Yi Wu
Hiroko Dodge
Nathaniel K Rodrigues
Sarah Gothard
Lisa C Silbert
Lisa L Barnes
Joel S Steele
Jeffrey Kaye
Differences in Life Space Activity Patterns Between Older Adults With Mild Cognitive Impairment Living Alone or as a Couple: Cohort Study Using Passive Activity Sensing
JMIR Aging
title Differences in Life Space Activity Patterns Between Older Adults With Mild Cognitive Impairment Living Alone or as a Couple: Cohort Study Using Passive Activity Sensing
title_full Differences in Life Space Activity Patterns Between Older Adults With Mild Cognitive Impairment Living Alone or as a Couple: Cohort Study Using Passive Activity Sensing
title_fullStr Differences in Life Space Activity Patterns Between Older Adults With Mild Cognitive Impairment Living Alone or as a Couple: Cohort Study Using Passive Activity Sensing
title_full_unstemmed Differences in Life Space Activity Patterns Between Older Adults With Mild Cognitive Impairment Living Alone or as a Couple: Cohort Study Using Passive Activity Sensing
title_short Differences in Life Space Activity Patterns Between Older Adults With Mild Cognitive Impairment Living Alone or as a Couple: Cohort Study Using Passive Activity Sensing
title_sort differences in life space activity patterns between older adults with mild cognitive impairment living alone or as a couple cohort study using passive activity sensing
url https://aging.jmir.org/2023/1/e45876
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