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Mulick AR, Henderson AD, Prieto-Merino D, Mansfield KE, Matthewman J, Quint JK, Lyons RA, Sheikh A, McAllister DA, Nitsch D, Langan SM. Novel multimorbidity clusters in people with eczema and asthma: a population-based cluster analysis. Sci Rep 2022; 12:21866. [PMID: 36529816 PMCID: PMC9760185 DOI: 10.1038/s41598-022-26357-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Accepted: 12/13/2022] [Indexed: 12/23/2022] Open
Abstract
Eczema and asthma are allergic diseases and two of the commonest chronic conditions in high-income countries. Their co-existence with other allergic conditions is common, but little research exists on wider multimorbidity with these conditions. We set out to identify and compare clusters of multimorbidity in people with eczema or asthma and people without. Using routinely-collected primary care data from the U.K. Clinical Research Practice Datalink GOLD, we identified adults ever having eczema (or asthma), and comparison groups never having eczema (or asthma). We derived clusters of multimorbidity from hierarchical cluster analysis of Jaccard distances between pairs of diagnostic categories estimated from mixed-effects logistic regressions. We analysed 434,422 individuals with eczema (58% female, median age 47 years) and 1,333,281 individuals without (55% female, 47 years), and 517,712 individuals with asthma (53% female, 44 years) and 1,601,210 individuals without (53% female, 45 years). Age at first morbidity, sex and having eczema/asthma affected the scope of multimorbidity, with women, older age and eczema/asthma being associated with larger morbidity clusters. Injuries, digestive, nervous system and mental health disorders were more commonly seen in eczema and asthma than control clusters. People with eczema and asthma of all ages and both sexes may experience greater multimorbidity than people without eczema and asthma, including conditions not previously recognised as contributing to their disease burden. This work highlights areas where there is a critical need for research addressing the burden and drivers of multimorbidity in order to inform strategies to reduce poor health outcomes.
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Affiliation(s)
- Amy R. Mulick
- grid.8991.90000 0004 0425 469XDepartment of Non-Communicable Disease Epidemiology, London School of Hygiene and Tropical Medicine, Keppel Street, London, WC1E 7HT UK
| | - Alasdair D. Henderson
- grid.8991.90000 0004 0425 469XDepartment of Non-Communicable Disease Epidemiology, London School of Hygiene and Tropical Medicine, Keppel Street, London, WC1E 7HT UK
| | - David Prieto-Merino
- grid.8991.90000 0004 0425 469XDepartment of Non-Communicable Disease Epidemiology, London School of Hygiene and Tropical Medicine, Keppel Street, London, WC1E 7HT UK
| | - Kathryn E. Mansfield
- grid.8991.90000 0004 0425 469XDepartment of Non-Communicable Disease Epidemiology, London School of Hygiene and Tropical Medicine, Keppel Street, London, WC1E 7HT UK
| | - Julian Matthewman
- grid.8991.90000 0004 0425 469XDepartment of Non-Communicable Disease Epidemiology, London School of Hygiene and Tropical Medicine, Keppel Street, London, WC1E 7HT UK
| | - Jennifer K. Quint
- grid.7445.20000 0001 2113 8111National Heart and Lung Institute, Imperial College London, London, UK
| | - Ronan A. Lyons
- grid.4827.90000 0001 0658 8800National Centre for Population Health and Wellbeing Research, Swansea University Medical School, Swansea, UK ,grid.4827.90000 0001 0658 8800Administrative Data Research UK, Swansea University Medical School, Swansea, UK
| | - Aziz Sheikh
- grid.4305.20000 0004 1936 7988Asthma UK Centre for Applied Research, Usher Institute, University of Edinburgh, Teviot Place, Edinburgh, EH8 9DX UK
| | - David A. McAllister
- grid.8756.c0000 0001 2193 314XInstitute of Health and Wellbeing, University of Glasgow, Glasgow, UK
| | - Dorothea Nitsch
- grid.8991.90000 0004 0425 469XDepartment of Non-Communicable Disease Epidemiology, London School of Hygiene and Tropical Medicine, Keppel Street, London, WC1E 7HT UK
| | - Sinéad M. Langan
- grid.8991.90000 0004 0425 469XDepartment of Non-Communicable Disease Epidemiology, London School of Hygiene and Tropical Medicine, Keppel Street, London, WC1E 7HT UK ,grid.507332.00000 0004 9548 940XHealth Data Research UK, Gibbs Building, 215 Euston Road, London, NW1 2BE UK
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McParland C, Cooper MA, Lowe DJ, Stanley B, Johnston B. Multimorbidity, disease count, mortality and emergency care use in persons attending the emergency department: a cross-sectional data-linkage study. JOURNAL OF MULTIMORBIDITY AND COMORBIDITY 2022; 12:26335565221147417. [PMID: 36545236 PMCID: PMC9761223 DOI: 10.1177/26335565221147417] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Accepted: 12/07/2022] [Indexed: 12/23/2022]
Abstract
Background Multimorbidity (two or more concurrent chronic conditions) is associated with poorer health outcomes and increased healthcare utilisation in primary care and general populations. Less is known about the prevalence of multimorbidity in emergency department attenders, or its association with poor outcomes in this population. Aim This study sought to explore the relationship between multimorbidity, mortality and health-care utilisation in a large urban cohort of persons attending emergency departments. Methods Validated algorithms for the identification of 28 chronic conditions from ICD-10 codes were deployed on a cross-sectional sample of patients attending emergency departments in Glasgow, Scotland between April 2019 and March 2020. Analysis was conducted on complete cases (n=63,328) and compared with results from data with imputed missing values (n=75,723). Models adjusted for age, sex, deprivation and ethnicity were fitted to test for the association between (i) multimorbidity, (ii) complex multimorbidity, (iii) disease count and the following outcomes: admission to hospital, reattendance at 30 and 90 days, and death during admission. Results Multimorbidity, complex multimorbidity and disease count were significantly associated with hospital admission and emergency department reattendance. Those with 1-3 conditions were at increased risk of inpatient mortality. Conclusion This study further evidences the impact of multimorbidity and disease burden on health-care use, and mortality to a lesser extent. Deployed algorithms were sufficiently sensitive to detect associations, despite limited access (21 months) to secondary-care data. This should allow for the construction of more robust models to prospectively identify persons at risk of poor outcomes in similar populations.
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Affiliation(s)
- Chris McParland
- School of Medicine, Dentistry and
Nursing, University
of Glasgow, Glasgow, UK,NHS Greater Glasgow and
Clyde, Glasgow UK
| | - Mark A Cooper
- School of Medicine, Dentistry and
Nursing, University
of Glasgow, Glasgow, UK,NHS Greater Glasgow and
Clyde, Glasgow UK
| | - David J Lowe
- NHS Greater Glasgow and
Clyde, Glasgow UK,Institute of Health and Wellbeing,
University
of Glasgow, Glasgow, UK
| | - Bethany Stanley
- Institute of Health and Wellbeing,
University
of Glasgow, Glasgow, UK
| | - Bridget Johnston
- School of Medicine, Dentistry and
Nursing, University
of Glasgow, Glasgow, UK,NHS Greater Glasgow and
Clyde, Glasgow UK
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