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Individual movements and contact patterns in a Canadian long-term care facility
Contact networks of individuals in healthcare facilities are poorly understood, largely due to the lack of spatio-temporal movement data. A better understanding of such networks of interactions can help improve disease control strategies for nosocomial outbreaks. We sought to determine the spatio-te...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
AIMS Press
2018
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6079054/ https://www.ncbi.nlm.nih.gov/pubmed/30094274 http://dx.doi.org/10.3934/publichealth.2018.2.111 |
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author | Champredon, David Najafi, Mehdi Laskowski, Marek Chit, Ayman Moghadas, Seyed M. |
author_facet | Champredon, David Najafi, Mehdi Laskowski, Marek Chit, Ayman Moghadas, Seyed M. |
author_sort | Champredon, David |
collection | PubMed |
description | Contact networks of individuals in healthcare facilities are poorly understood, largely due to the lack of spatio-temporal movement data. A better understanding of such networks of interactions can help improve disease control strategies for nosocomial outbreaks. We sought to determine the spatio-temporal patterns of interactions between individuals using movement data collected in the largest veterans long-term care facility in Canada. We processed close-range contact data generated by the exchange of ultra-low-power radio signals, in a prescribed proximity, between wireless sensors worn by the participants over a two-week period. Statistical analyses of contact and movement data were conducted. We found a clear dichotomy in the contact network and movement patterns between residents and healthcare workers (HCWs) in this facility. Overall, residents tend to have significantly more distinct contacts with the mean of 17.3 (s.d. 3.6) contacts, versus 3.5 (s.d. 2.3) for HCWs (p-value < 10(−12)), for a longer duration of time (with mean contact duration of 8 minutes for resident-resident pair versus 4.6 minutes for HCW-resident pair) while being less mobile than HCWs. Analysis of movement data and clustering coefficient of the hourly aggregated network indicates that the contact network is loosely connected (mean clustering coefficient: 0.25, interquartile range 0–0.40), while being highly structured. Our findings bring quantitative insights regarding the contact network and movements in a long-term care facility, which are highly relevant to infer direct human-to-human and indirect (i.e., via the environment) disease transmission processes. This data-driven quantification is essential for validating disease dynamic models, as well as decision analytic methods to inform control strategies for nosocomial infections. |
format | Online Article Text |
id | pubmed-6079054 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | AIMS Press |
record_format | MEDLINE/PubMed |
spelling | pubmed-60790542018-08-09 Individual movements and contact patterns in a Canadian long-term care facility Champredon, David Najafi, Mehdi Laskowski, Marek Chit, Ayman Moghadas, Seyed M. AIMS Public Health Research Article Contact networks of individuals in healthcare facilities are poorly understood, largely due to the lack of spatio-temporal movement data. A better understanding of such networks of interactions can help improve disease control strategies for nosocomial outbreaks. We sought to determine the spatio-temporal patterns of interactions between individuals using movement data collected in the largest veterans long-term care facility in Canada. We processed close-range contact data generated by the exchange of ultra-low-power radio signals, in a prescribed proximity, between wireless sensors worn by the participants over a two-week period. Statistical analyses of contact and movement data were conducted. We found a clear dichotomy in the contact network and movement patterns between residents and healthcare workers (HCWs) in this facility. Overall, residents tend to have significantly more distinct contacts with the mean of 17.3 (s.d. 3.6) contacts, versus 3.5 (s.d. 2.3) for HCWs (p-value < 10(−12)), for a longer duration of time (with mean contact duration of 8 minutes for resident-resident pair versus 4.6 minutes for HCW-resident pair) while being less mobile than HCWs. Analysis of movement data and clustering coefficient of the hourly aggregated network indicates that the contact network is loosely connected (mean clustering coefficient: 0.25, interquartile range 0–0.40), while being highly structured. Our findings bring quantitative insights regarding the contact network and movements in a long-term care facility, which are highly relevant to infer direct human-to-human and indirect (i.e., via the environment) disease transmission processes. This data-driven quantification is essential for validating disease dynamic models, as well as decision analytic methods to inform control strategies for nosocomial infections. AIMS Press 2018-05-09 /pmc/articles/PMC6079054/ /pubmed/30094274 http://dx.doi.org/10.3934/publichealth.2018.2.111 Text en © 2018 the Author(s), licensee AIMS Press This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0) |
spellingShingle | Research Article Champredon, David Najafi, Mehdi Laskowski, Marek Chit, Ayman Moghadas, Seyed M. Individual movements and contact patterns in a Canadian long-term care facility |
title | Individual movements and contact patterns in a Canadian long-term care facility |
title_full | Individual movements and contact patterns in a Canadian long-term care facility |
title_fullStr | Individual movements and contact patterns in a Canadian long-term care facility |
title_full_unstemmed | Individual movements and contact patterns in a Canadian long-term care facility |
title_short | Individual movements and contact patterns in a Canadian long-term care facility |
title_sort | individual movements and contact patterns in a canadian long-term care facility |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6079054/ https://www.ncbi.nlm.nih.gov/pubmed/30094274 http://dx.doi.org/10.3934/publichealth.2018.2.111 |
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