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Lisa Jane Brighton,1 Claire M Nolan,2,3 Ruth E Barker,2,4,5 Suhani Patel,2,4 Jessica A Walsh,2 Oliver Polgar,2 Samantha SC Kon,2,4,6 Wei Gao,1 Catherine J Evans,1,7 Matthew Maddocks,1 William DC Man2,4,8,9 1Cicely Saunders Institute of Palliative Care, Policy and Rehabilitation, King’s College London, London, UK; 2Harefield Respiratory Research Group, Royal Brompton and Harefield Hospitals, Guy’s and St Thomas NHS Foundation Trust, London, UK; 3Division of Physiotherapy, College of Health, Medicine and Life Sciences, Brunel University London, London, UK; 4National Heart and Lung Institute, Imperial College, London, UK; 5Insight Innovation, Wessex Academic Health Science Network, Southampton, UK; 6Department of Respiratory Medicine, The Hillingdon Hospital NHS Trust, London, UK; 7Brighton General Hospital, Sussex Community NHS Foundation Trust, Brighton, UK; 8Harefield Pulmonary Rehabilitation Unit, Guy’s and St Thomas NHS Foundation Trust, London, UK; 9Faculty of Life Sciences & Medicine, King’s College London, London, UKCorrespondence: Lisa Jane Brighton, Cicely Saunders Institute, Bessemer Road, Denmark Hill, London, SE5 9PJ, UK, Tel +44 020 7848 5041, Email lisa.brighton@kcl.ac.ukBackground: Identifying frailty in people with chronic obstructive pulmonary disease (COPD) is deemed important, yet comparative characteristics of the most commonly used frailty measures in COPD are unknown. This study aimed to compare how the Fried Frailty Phenotype (FFP) and Short Physical Performance Battery (SPPB) characterise frailty in people with stable COPD, including prevalence of and overlap in identification of frailty, disease and health characteristics of those identified as living with frailty, and predictive value in relation to survival time.Methods: Cohort study of people with stable COPD attending outpatient clinics. Agreement between frailty classifications was described using Cohen’s Kappa. Disease and health characteristics of frail versus not frail participants were compared using t-, Mann–Whitney U and Chi-Square tests. Predictive value for mortality was examined with multivariable Cox regression.Results: Of 714 participants, 421 (59%) were male, mean age 69.9 years (SD 9.7), mean survival time 2270 days (95% CI 2185– 2355). Similar proportions were identified as frail using the FFP (26.2%) and SPPB (23.7%) measures; classifications as frail or not frail matched in 572 (80.1%) cases, showing moderate agreement (Kappa = 0.469, SE = 0.038, p < 0.001). Discrepancies seemed driven by FFP exhaustion and weight loss criteria and the SPPB balance component. People with frailty by either measure had worse exercise capacity, health-related quality of life, breathlessness, depression and dependence in activities of daily living. In multivariable analysis controlling for the Age Dyspnoea Obstruction index, sex, BMI, comorbidities and exercise capacity, both the FFP and SPPB had predictive value in relation to mortality (FFP aHR = 1.31 [95% CI 1.03– 1.66]; SPPB aHR = 1.29 [95% CI 0.99– 1.68]).Conclusion: In stable COPD, both the FFP and SPPB identify similar proportions of people living with/without frailty, the majority with matching classifications. Both measures can identify individuals with multidimensional health challenges and increased mortality risk and provide additional information alongside established prognostic variables.Keywords: respiratory disease, chronic obstructive pulmonary disease, frailty, survival

Ruth E Barker,1,2 Lisa J Brighton,3 Matthew Maddocks,3 Claire M Nolan,1,2 Suhani Patel,1 Jessica A Walsh,1 Oliver Polgar,1 Jenni Wenneberg,4 Samantha SC Kon,4 Jadwiga A Wedzicha,2 William DC Man,1,2 Morag Farquhar5 1Harefield Respiratory Research Group, Harefield Hospital, Middlesex, UK; 2National Heart and Lung Institute, Imperial College, London, UK; 3Cicely Saunders Institute of Palliative Care, Policy and Rehabilitation, King’s College London, London, UK; 4The Hillingdon Hospitals NHS Foundation Trust, London, UK; 5School of Health Sciences, University of East Anglia, Norwich, UKCorrespondence: Ruth E BarkerHarefield Respiratory Research Group, Harefield Hospital, Hill End Road, Middlesex, UB9 6JH, United KingdomTel +44 01895 828851Email r.barker2@rbht.nhs.ukBackground: Hospital at home (HaH) schemes allow early discharge of patients hospitalised with an acute exacerbation of chronic obstructive pulmonary disease (AECOPD). Traditional outpatient pulmonary rehabilitation (PR) following an AECOPD has an established evidence-base, but there are issues with low referral, uptake and completion. One commonly cited barrier to PR post-hospitalisation relates to poor accessibility. To address this, the aim of this project was to enrol service users (patients with COPD and informal carers) and healthcare professionals to co-design a model of care that integrates home-based exercise training within a HaH scheme for patients discharged from hospital following AECOPD.Methods: This accelerated experience-based co-design project included three audio-recorded stakeholder feedback events, using key “touchpoints” from previous qualitative interviews and a recent systematic review. Audio-recordings were inductively analysed using directed content analysis. An integrated model of care was then developed and finalised through two co-design groups, with the decision-making process facilitated by the tables of changes approach.Results: Seven patients with COPD, two informal carers and nine healthcare professionals (from an existing outpatient PR service and HaH scheme) participated in the stakeholder feedback events. Four key themes were identified: 1) individualisation, 2) progression and transition, 3) continuity between services, and 4) communication between stakeholders. Two patients with COPD, one informal carer and three healthcare professionals participated in the first joint co-design group, with five healthcare professionals attending a second co-design group. These achieved a consensus on the integrated model of care. The agreed model comprised face-to-face supervised, individually tailored home-based exercise training one to three times a week, delivered during HaH scheme visits where possible by a healthcare professional competent to provide both home-based exercise training and usual HaH care.Conclusion: An integrated model of care has been co-designed by patients with COPD, informal carers and healthcare professionals to address low uptake and completion of PR following AECOPD. The co-designed model of care has now been integrated within a well-established HaH scheme.Keywords: COPD, exacerbations, rehabilitation, exercise training, integrated care, co-design