biostudies-literatureStafford MOntario Ministry of Health and Long-Term Caree0266418https://www.ebi.ac.uk/biostudies/studies/S-EPMC8974956biostudies-literatureUnknown17(4)<h4>Background</h4>Multiple conditions are more prevalent in some minoritised ethnic groups and are associated with higher mortality rate but studies examining differential mortality once conditions are established is US-based. Our study tested whether the association between multiple conditions and mortality varies across ethnic groups in England.<h4>Methods and findings</h4>A random sample of primary care patients from Clinical Practice Research Datalink (CPRD) was followed from 1st January 2015 until 31st December 2019. Ethnicity, usually self-ascribed, was obtained from primary care records if present or from hospital records. Long-term conditions were counted from a list of 32 that have previously been associated with greater primary care, hospital admissions, or mortality risk. Cox rPloS oneAssociations between multiple long-term conditions and mortality in diverse ethnic groups.PMC8974956#694Stafford MDeeny SRPefoyo Kone AWodchis WPKnight HAlarilla AHughes JMondor LfalseAssociations between multiple long-term conditions and mortality in diverse ethnic groups.<h4>Background</h4>Multiple conditions are more prevalent in some minoritised ethnic groups and are associated with higher mortality rate but studies examining differential mortality once conditions are established is US-based. Our study tested whether the association between multiple conditions and mortality varies across ethnic groups in England.<h4>Methods and findings</h4>A random sample of primary care patients from Clinical Practice Research Datalink (CPRD) was followed from 1st January 2015 until 31st December 2019. Ethnicity, usually self-ascribed, was obtained from primary care records if present or from hospital records. Long-term conditions were counted from a list of 32 that have previously been associated with greater primary care, hospital admissions, or mortality risk. Cox r2022-01-01T00:00:00Z20222025-04-26T15:17:36.404Z2025-04-06T14:50:13.801ZS-EPMC89749563536380410.1371/journal.pone.0266418