P185 Long-term impact of radiotherapy on the clinical and patient-reported outcomes of immediate breast reconstruction in a UK population-based cohort study - L. Johnson; P. White; R. Jeevan; J. Browne; C. Gulliver-Clarke; J. O’Donoghue; S. Mohiuddin; W. Hollingworth; P. Fairbrother; M. MacKenzie; C. Holcombe; S. Potter (Breast, 2023)