Table 1.
Baseline Characteristics by Uncorrected Visual Acuity in Best Eye
| Normal Acuity (1.0) | Mild Impairment (<1.0 to >0.5) | Moderate Impairment (≤0.5 to ≥0.3) | Severe Impairment (<0.3) | |
|---|---|---|---|---|
| Total, N (%) | 903227 (79.18) | 84663 (7.42) | 62678 (5.49) | 90142 (7.90) |
| Age, mean (SD) | 18.30 (0.79) | 18.32 (0.85) | 18.32 (0.79) | 18.30 (0.68) |
| SES, N (%) | ||||
| Unemployed | 25950 (2.87) | 2746 (3.24) | 1864 (2.97) | 2467 (2.74) |
| Worker | 307377 (34.03) | 27495 (32.48) | 19131 (30.52) | 25379 (28.15) |
| White-collar | 414902 (45.94) | 40930 (48.34) | 32070 (51.17) | 49259 (54.65) |
| Business owner | 122880 (13.60) | 10167 (12.01) | 7280 (11.61) | 10005 (11.10) |
| Missing | 32118 (3.56) | 3325 (3.93) | 2333 (3.72) | 3032 (3.36) |
| IQ group, median | 96–104 | 96–104 | 96–104 | 105–110 |
| CMD, N (%) | 17202 (1.90) | 1608 (1.90) | 1025 (1.64) | 1093 (1.21) |
| Parental SMI, N (%) | 31280 (3.46) | 3030 (3.58) | 2252 (3.59) | 2997 (3.32) |
| Alcohol misuse N (%) | 1424 (0.16) | 112 (0.13) | 49 (0.08) | 33 (0.04) |
| Substance misuse N (%) | 2068 (0.23) | 142 (0.17) | 72 (0.11) | 49 (0.05) |
Note: SES, socioeconomic status; CMD, common mental disorder; SMI, serious mental illness.