Retention
At 30 days, 65 participants (57.5 per cent, c.i. [47.9–66.8]) completed PROMs, including the BWHQ, PEM, PROMIS UE and EQ-5D-5L. If participants did complete their PROMs, then they completed all questionnaires. At 90 days, 59 participants (52.2 per cent, c.i. [42.6–61.7]) had completed PROMs. At 6 months and final follow-up, 51 participants (45.1 per cent, c.i. [35.8–54.8]) had responded. Follow-up varied across sites at 30 days, where completion rates were 34.6 per cent 