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Table 1 The number and frequency of ICF categories for each component of the ICF classification that were linked to the LFIS-RA and to concepts derived from PsA-related foot involvement

From: Linking the effect of psoriatic arthritis-related foot involvement to the Leeds Foot Impact Scale using the International Classification for Functioning, Disability and Health: a study to assess content validity

ICF components ICF categories linked to the LFIS-RA ICF categories linked to concepts derived from PsA-related foot involvement
n (%) Frequency (%) n (%) Frequency (%)
Body Structures 1 (3%) 5 (5%) 17 (12%) 1127 (15%)
Body Functions 13 (37%) 41 (44%) 48 (32%) 2656 (35%)
Activities and Participation 17 (49%) 33 (35%) 55 (37%) 1420 (19%)
Environmental Factors 4 (11%) 15 (16%) 28 (19%) 2327 (31%)
Total 35 94 148 7530
  1. ICF international Classification of Functioning, Disability and Health, LFIS-RA Leeds Foot Impact Scale in rheumatoid arthritis, PsA Psoriatic arthritis