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Table 1 Prevalence of CCVD according to age and gender

From: Prevalence of congenital colour vision deficiency among Black school children in Durban, South Africa

Category

Total

n (%)

Protans

n (%)

Deutans

n (%)

CCVD

n (%) [95% CI]

p-value

Age (years)

 7–12

719

7 (1.0)

6 (0.8)

13 (1.8) [0.7–2.8]

0.12

 13–17

586

3 (0.5)

13 (2.2)

16 (2.7) [1.1–4.2]

 

Gender

 Male

601 (46.1)

9 (1.5)

16 (2.7)

25 (4.2) [3.1–6.4]

0.00

 Female

704 (53.9)

1 (0.1)

3 (0.4)

4 (0.5) [0.1–1.1]

 

 Total

1305

10 (0.7)

19 (1.5)

29 (2.2) [0.9–3.1]