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Table 1 Characteristics of the participants by age group

From: Feasibility of the Participation and Activity Inventory for Children and Youth (PAI-CY) and Young Adults (PAI-YA) with a visual impairment: a pilot study

  PAI-CY 0–2 PAI-CY 3–6 PAI-CY 7–12 PAI-CY 13–17 PAI-YA 18–25
Age in years
 Mean (range) 19.3 (8–30) a 4.5 (3–6) 9.8 (8–12) 15 (13–17) 22 (18–26)
Sex
 Male, N (%) 3 (50) 5 (83.3) 4 (66.7) 5 (83.3) 1 (16.7)
Visual acuity
 Blind, N (%) b    1 (17%) 1 (17%) 1 (17%)
 Low vision, N (%) 3 (50%) 3 (50%) 5 (83%) 5 (83%) 5 (83%)
 Unknown, N (%) 3 (50%) 3 (50%)    
Ophthalmic diagnosis
 Cerebral, N (%) 2 (33.3%) 2 (33.3%) 1 (16.7%) 1 (16.7%) 1 (16.7%)
 Retinal, N (%)   1 (16.7%) 5 (83.3%) 3 (50%) 4 (66.7%)
 Lens, N (%) 1 (16.7%)     
 Optic, N (%)     1 (16.7%) 1 (16.7%)
 Unknown, N (%) 3 (50%) 3 (50%)   1 (16.7%)  
Proxy parents
 Mother, N (%) 2 (33.3%) 4 (66.7%) 6 (100%) 4 (66.7%)  
 Father, N (%) 2 (33.3%) 1 (16.7%)   1 (16.7%)  
 Together, N (%) 2 (33.3%) 1 (16.7%)   1 (16.7%)  
Duration in minutes
 Mean (range) 13.3 (5–25) 21.7 (15–45) 16.7 (5–25) 14.2 (10–20) 45.8 (30–90)
  1. aAge in months instead of years
  2. bBlind: visual acuity ≤ 0.05 and/or visual field ≤ 10°