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Table 1 Socio-demographic and clinical characteristics of the Dutch and the UK sample

From: Cross-cultural validation of the Functional Vision Questionnaire for Children and Young People (FVQ_CYP) with visual impairment in the Dutch population: challenges and opportunities

 Dutch sample
N = 253
UK sample
N = 91
Age in years, mean ± SD (range)11.06 ± 2.87 (7–18)12.09 ± 1.84 (9–15)
Gender, n (%)
 Male150 (59.3)52 (57.1)
 Female103 (40.7)39 (42.9)
Level of VI
 VI0: logMAR ≤0.47126 (49.8)
 VI1: logMAR 0.48–0.7056 (22.1)42 (46.2)
 VI2: logMAR 0.71–1.0035 (13.8)31 (34.1)
 SVI: logMAR 1.01–1.304 (1.6)10 (11.0)
 Blind: logMAR ≥1.3124 (9.5)8 (8.8)
 Unknown8 (3.2)
Nationality
 Ethnic majority228 (90.1)77 (84.6)
 Ethnic minortiy25 (9.9)14 (15.4)
Other impairment, n (%)
 Yes117 (46.2)28 (30.8)
 No124 (49.0)62 (68.1)
 Unknown12 (4.7)1 (1.1)
Siblings, n (%)
 No29 (11.5)6 (6.6)
 One119 (47.0)49 (53.8)
 Two or more93 (36.8)33 (36.3)
 Unknown12 (4.7)3 (3.3)
Siblings with VI, n (%)
 Yes41 (16.2)21 (23.1)
 No171 (67.6)61 (67.0)
 N/A (no/unknown siblings)41 (16.2)9 (9.9)