Table 4 Prevalence of colour vision deficiency among different ethnic groups of the students of FCE(T), UNILAG and YABATECH
Institution | Hausa | Igbo | Yoruba | Others | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Normal n (%) | CVD n (%) | Total | Normal n (%) | CVD n (%) | Total | Normal n (%) | CVD n (%) | Total | Normal n (%) | CVD n (%) | Total | |
FCE(T) | 26 (96.30) | 1 (3.70) | 27 | 69 (98.57) | 1 (1.43) | 70 | 231 (97.06) | 7 (2.94) | 238 | 57 (100.00) | 0 (0.00) | 57 |
UNILAG | 17 (100.00) | 0 (0.00) | 17 | 86 (100.00) | 0 (0.00) | 86 | 237 (97.13) | 7 (2.87) | 244 | 51 (98.08) | 1 (1.92) | 52 |
YABATECH | 25 (100.00) | 0 (0.00) | 25 | 68 (93.15) | 5 (6.85) | 73 | 207 (94.95) | 11 (5.05) | 218 | 83 (98.81) | 1 (1.19) | 84 |
Total | 68 (98.55) | 1 (1.45) | 69 | 223 (97.38) | 6 (2.62) | 229 | 675 (96.43) | 25 (3.57) | 700 | 191 (98.96) | 2 (1.04) | 193 |