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Table 8 Process of revising the Stroke-PROM

From: Development and validation of a patient-reported outcome measure for stroke patients

  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
  1. Note: PHD, physical domain; PSD, psychological domain; SOD, social domain; THD, therapeutic domain.