Table 2.
Personal and family history of medical students according to their color vision deficiency status (n=1115)
| History | CVD status* | P-value | ||
|---|---|---|---|---|
|
| ||||
| Deficienta (n=23; 2.0%) N (%) | Small change (2%)/misdiagnosedb (n=31; 2.8%) N (%) | Normalc (n=1061; 95.2%) N (%) | ||
| Vision problem | ||||
| Yes | 15 (65.2) | 8 (25.8) | 543 (51.2) | 0.008 |
| No | 8 (34.8) | 23 (74.2) | 518 (48.8) | |
| Family history of CVD | ||||
| Yes | 5 (21.7) | 3 (09.7) | 94 (08.9) | 0.09 |
| No | 18 (78.3) | 28 (90.3) | 967 (91.1) | |
| History of eye surgery | ||||
| Yes | 1 (4.4) | 1 (03.2) | 78 (7.3) | 0.63 |
| No | 22 (95.7) | 30 (96.8) | 983 (92.6) | |
| History of eye trauma | ||||
| Yes | 4 (17.4) | 1 (03.2) | 80 (07.5) | 0.14 |
| No | 19 (82.6) | 30 (96.8) | 981 (92.5) | |
| Exposure to chemicals | ||||
| Yes | 2 (08.7) | 0 | 37 (03.5) | 0.21 |
| No | 21 (91.3) | 31 (100) | 1024 (96.5) | |
| Current health problems | ||||
| Yes | 2 (08.7) | 3 (09.7) | 160 (15.1) | 0.64 |
| No | 21 (91.3) | 28 (90.3) | 901 (84.9) | |
| Consume Vitamin-A-rich diet | ||||
| Yes | 16 (69.6) | 15 (48.4) | 725 (68.3) | 0.05 |
| No | 7 (30.4) | 16 (51.6) | 336 (31.7) | |
*Scoring of Ishihara test: aStudents who have scored 10 or less were considered as deficient, bStudents scoring between 11 and 12 were considered to have CVD with a small change (2%) or misdiagnosis, cStudents who have scored 13 or more were considered normal.[4] CVD: Color vision deficiency