RT Journal Article SR Electronic T1 Multimorbidity within households and use of health and social care JF BJGP Open JO BJGP Open FD Royal College of General Practitioners SP BJGPO.2020.0134 DO 10.3399/BJGPO.2020.0134 A1 Mai Stafford A1 Sarah Deeny A1 Kathryn Dreyer A1 Shand Jenny YR 2020 UL http://bjgpopen.org/content/early/2020/11/19/BJGPO.2020.0134.abstract AB Background: The daily management of long-term conditions falls primarily on individuals and informal carers, but the impact of household context on health and social care activity among people with multimorbidity is understudied. Aim: To test whether co-residence with a multimorbid person (compared with a non-multimorbid co-resident) is associated with utilisation and cost of primary, community and secondary health care and formal social care. Design and Setting: Linked data from health providers and local government in Barking and Dagenham for a retrospective cohort of people aged 50+ in two-person households in 2016-2018. Methods: Two-part regression models were applied to estimate annualised use and cost of hospital, primary, community, mental health and social care by multimorbidity status of individuals and co-residents, adjusted for age, gender and deprivation. Applicability at the national level was tested using the Clinical Practice Research Datalink. Results: Over 45% of multimorbid people in two-person households were co-resident with another multimorbid person. They were 1.14 (95% CI 1.00, 1.30) times as likely to have community care activity and 1.24 (95% CI 0.99,1.54) times as likely to have mental health care activity compared to those co-resident with a healthy person. They had more primary care visits (8.5 (95% CI 8.2,8.8) vs 7.9 (95% CI 7.7,8.2)) and higher primary care costs. Outpatient care and elective admissions did not differ. Findings in national data were similar. Conclusions: Care utilisation for people with multimorbidity varies by household context. There may be potential for connecting health and community service input across household members.