Correction

After publication, the authors noticed some minor errors in “Nested qualitative sub-study” section, first paragraph of the section, page 7 of the published article. These may cause some confusion to the readers when the results of the qualitative sub-study are published [1].

Please see below for details (the new text has been added in bold and the incorrect text has been underlined.

“It was anticipated that semi-structured, face to face interviews were would need to be conducted with a purposive sample of approximately 15 patients, 15 carers and 15 clinicians to determine the acceptability of using prognostic indicators, and barriers and facilitators to clinicians’ use. It was recognised that, data saturation will would determine the final sample sizes, which may be larger or smaller than anticipated. To date, 28 patients, 19 carers and 32 clinicians were have been enrolled in the qualitative sub-study.”