“…This produced an extensive list, with multiple OMIs used to measure individual outcomes (Table 2). We employed the categories identified as part of the OMIPP project (previously discussed in the ‘Methods’ section), using them to map our outcomes and OMIs, as appropriate [17]. Hence, our long-list was mapped onto 23 predetermined ‘core categories’, belonging to eight ‘main categories’, namely ‘Changes in patient-related symptom severity’, ‘Quality of life’, ‘Physiological assessments’, ‘Microbiological’, ‘Biomarkers’, ‘Lower airway disease’, ‘Side effects’ and ‘Acceptability of treatment’ (Table 3).…”