Reduction of domains and instruments in the Delphi process
| Phase yielded | Analysis method | Domains CTD-ILD/IPF | Instruments CTD-ILD/IPF | Participant Dropout (%) |
|---|---|---|---|---|
| Tier 0 | Intense review | 133 nominations >>23 | >6700 nominations >>616/616 | 0 |
| Tier 1 | <4 median cut-off | 21 | 71/71 | 2 |
| Tier 2 | cluster analysis | 13 | 58/61 | <1 |
| Tier 3 | cluster analysis | 5/5 | 18/18 | 0 |
CTD-ILD, connective tissue disease associated interstitial lung disease; IPF, idiopathic pulmonary fibrosis.