Table 8 Process of revising the Stroke-PROM
From: Development and validation of a patient-reported outcome measure for stroke patients
| Â | Formation of preliminary items | Formation of preliminary scale | Formation of initial scale | Formation of final scale |
|---|---|---|---|---|
Number of items | 62 | 60 | 47 | 46 |
Number of domains | 4 | 4 | 4 | 4 |
Number of subdomains | 10 | 11 (cognition subdomain was added) | 10 (compliance subdomain was deleted) | 10 |
Number of deleted items | — | 7 (PHD3, PHD5, PHD6, PHD9, PHD16, PSD18, SOD1 of Additional file 1: Appendix 1-1) | 13 (PHD18, PHD19, PSD2, PSD5, PSD8, PSD9, PSD15, PSD20, SOD1, SOD2, THD1, THD2, THD3 of Additional file 1: Appendix 2-1) | 1 (THD3 of Additional file 1: Appendix 3-1) |
Method used for deleting items | — | I-CVI (PHD3, PHD5, PHD6, PHD9, SOD1); Opinions of patients and clinical experts, reference to other scales (PHD16, PSD18) | CTT and IRT (PHD18, PHD19, PSD5, PSD8, PSD9, PSD20, SOD1, SOD2, THD1); IRT, opinions of patients and clinical experts, reference to other scales (THD2, THD3); Opinions of patients and clinical experts, reference to other scales (PSD2, PSD15) | CTT and IRT (THD3) |
Number of added items | — | 5 (PHD2, PHD7, PHD10, PHD11, PSD18 of Additional file 1: Appendix 2-1) | 0 | 0 |
Method used for adding items | — | Opinions of patients and clinical experts, reference to other scales | — | — |