eprintid: 10205423 rev_number: 7 eprint_status: archive userid: 699 dir: disk0/10/20/54/23 datestamp: 2025-02-28 09:50:37 lastmod: 2025-02-28 09:50:37 status_changed: 2025-02-28 09:50:37 type: article metadata_visibility: show sword_depositor: 699 creators_name: MacRae, Clare creators_name: Mercer, Stewart W creators_name: Abubakar, Eleojo creators_name: Lawson, Andrew creators_name: Lone, Nazir creators_name: Rawlings, Anna creators_name: Lyons, Jane creators_name: Lyons, Ronan A creators_name: Mizen, Amy creators_name: Fry, Rich creators_name: Baranyi, Gergő creators_name: Pearce, Jamie creators_name: Dibben, Chris creators_name: Modig, Karin creators_name: Owen, Rhiannon creators_name: Guthrie, Bruce title: Impact of household size and co-resident multimorbidity on unplanned hospitalisation and transition to care home ispublished: pub divisions: UCL divisions: B16 divisions: B14 divisions: J81 note: This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/. abstract: The ability to manage ill health and care needs might be affected by who a person lives with. This study examined how the risk of unplanned hospitalisation and transition to living in a care home varied according to household size and co-resident multimorbidity. Here we show results from a cohort study using Welsh nationwide linked healthcare and census data, that employed multilevel multistate models to account for the competing risk of death and clustering within households. The highest rates of unplanned hospitalisation and care home transition were in those living alone. Event rates were lower in all shared households and lowest when co-residents did not have multimorbidity. These differences were more substantial for care home transition. Therefore, living alone or with co-residents with multimorbidity poses additional risk for unplanned hospitalisation and care home transition beyond an individual’s sociodemographic and health characteristics. Understanding the mechanisms behind these associations is necessary to inform targeted intervention strategies. date: 2025-02-17 date_type: published publisher: Springer Science and Business Media LLC official_url: https://doi.org/10.1038/s41467-025-56990-9 oa_status: green full_text_type: pub language: eng primo: open primo_central: open_green verified: verified_manual elements_id: 2364781 doi: 10.1038/s41467-025-56990-9 medium: Electronic pii: 10.1038/s41467-025-56990-9 lyricists_name: Baranyi, Gergo lyricists_id: GBARA64 actors_name: Baranyi, Gergo actors_id: GBARA64 actors_role: owner full_text_status: public publication: Nature Communications volume: 16 article_number: 1718 event_location: England issn: 2041-1723 citation: MacRae, Clare; Mercer, Stewart W; Abubakar, Eleojo; Lawson, Andrew; Lone, Nazir; Rawlings, Anna; Lyons, Jane; ... Guthrie, Bruce; + view all <#> MacRae, Clare; Mercer, Stewart W; Abubakar, Eleojo; Lawson, Andrew; Lone, Nazir; Rawlings, Anna; Lyons, Jane; Lyons, Ronan A; Mizen, Amy; Fry, Rich; Baranyi, Gergő; Pearce, Jamie; Dibben, Chris; Modig, Karin; Owen, Rhiannon; Guthrie, Bruce; - view fewer <#> (2025) Impact of household size and co-resident multimorbidity on unplanned hospitalisation and transition to care home. Nature Communications , 16 , Article 1718. 10.1038/s41467-025-56990-9 <https://doi.org/10.1038/s41467-025-56990-9>. Green open access document_url: https://discovery.ucl.ac.uk/id/eprint/10205423/1/Impact%20of%20household%20size%20and%20co-resident%20multimorbidity%20on%20unplanned%20hospitalisation%20and%20transition%20to%20care%20home.pdf