Development and validation of a questionnaire assessing the quality of life impact of Colour Blindness (CBQoL)

BMC Ophthalmology

Table 1 Description of the colour vision and social background of the participants by sex (128 men and 291 women)

CB colour blind (Ishihara score 0–9), Borderline normal vision (Ishihara score 10–12), Normal vision (Ishihara score 13–15). SEC Socioeconomic class. Note 17% (73 of 419) of SEC responses were missing or uncategorisable, thus totals do not add up to Ns for each group as a whole
^a Sig value: p = 1.5 × 10⁻²⁶
^b Correction with Fisher’s exact test, as three cells had expected frequencies of less than 5

ISSN: 1471-2415