Geriatrician assessment and immortal time bias in the FiTR 2 study - Authors' reply

Affiliations

• ¹ CLARITY (Collaborative Ageing Research) group, North Bristol NHS Trust, Southmead Hospital, Bristol BS10 5NB, UK; Severn Major Trauma Network, Bristol, UK. Electronic address: philip.braude@nbt.nhs.uk.
• ² CLARITY (Collaborative Ageing Research) group, North Bristol NHS Trust, Southmead Hospital, Bristol BS10 5NB, UK.
• ³ The Trauma Audit and Research Network, University of Manchester, Salford Royal Northern Care Alliance NHS Foundation Trust, Salford, UK.
• ⁴ The Trauma Audit and Research Network, University of Manchester, Salford Royal Northern Care Alliance NHS Foundation Trust, Salford, UK; Centre for Urgent and Emergency Care Research, Health Services Research Section, School of Health and Related Research, University of Sheffield, Sheffield, UK; Emergency Department, Salford Royal Hospital, Salford, UK.
• ⁵ CLARITY (Collaborative Ageing Research) group, North Bristol NHS Trust, Southmead Hospital, Bristol BS10 5NB, UK; Department of Biostatistics and Health Informatics, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK.