Table 4.
Four-year Incidence of Monocular Best Corrected Visual Impairment in the Los Angeles Latino Eye Study
| Age at baseline (years) |
Incidence in 1st Eye | Incidence in 2nd Eye | Incidence in Either Eye ∥ | ||||||
|---|---|---|---|---|---|---|---|---|---|
| N | n | % (CI) | N | n | % (CI) | N | n | % (CI) | |
| United States Criterion* | |||||||||
| 40–49 | 1704 | 12 | 0.7 (0.3, 1.1) | 44 | 2 | 4.5 (0.0, 10.7) | 1748 | 14 | 0.8 (0.4, 1.2) |
| 50–59 | 1393 | 18 | 1.3 (0.7, 1.9) | 50 | 1 | 2.0 (0.0, 5.9) | 1443 | 19 | 1.3 (0.7, 1.9) |
| 60–69 | 845 | 45 | 5.3 (3.8, 6.8) | 64 | 7 | 10.9 (3.3, 18.6) | 909 | 52 | 5.7 (4.2, 7.2) |
| 70–79 | 329 | 44 | 13.4 (9.7, 17.1) | 44 | 10 | 22.7 (10.3, 35.1) | 373 | 54 | 14.5 (10.9, 18.0) |
| 80+ | 48 | 7 | 14.6 (4.6, 24.6) | 19 | 7 | 36.8 (15.2, 58.5) | 67 | 14 | 20.9 (11.2, 30.6) |
| P < 0.001 | P < 0.001 | P < 0.001 | |||||||
| Crude Overall | 4319 | 126 | 2.9 (2.4, 3.4) | 221 | 27 | 12.2 (7.9, 16.5) | 4540 | 153 | 3.4 (2.8, 3.9) |
| Age-standardized# | 3.2 (2.6, 3.8) | 7.3 (4.5, 10.1) | 3.6 (3.0, 4.1) | ||||||
| World Health Organization Criterion† | |||||||||
| 40–49 | 1719 | 10 | 0.6 (0.2, 0.9) | 30 | 0 | NA | 1749 | 10 | 0.6 (0.2, 0.9) |
| 50–59 | 1409 | 13 | 0.9 (0.4, 1.4) | 35 | 1 | 2.9 (0.0, 8.4) | 1444 | 14 | 1.0 (0.5, 1.5) |
| 60–69 | 862 | 24 | 2.8 (1.7, 3.9) | 56 | 6 | 10.7 (2.6, 18.8) | 918 | 30 | 3.3 (2.1, 4.4) |
| 70–79 | 355 | 38 | 10.7 (7.5, 13.9) | 33 | 4 | 12.1 (1.0, 23.3) | 388 | 42 | 10.8 (7.7, 13.9) |
| 80+ | 60 | 8 | 13.3 (4.7, 21.9) | 12 | 6 | 20.0 (21.7, 78.3) | 72 | 14 | 19.4 (10.3, 28.6) |
| P < 0.001 | P < 0.001 | P < 0.001 | |||||||
| Crude Overall | 4405 | 93 | 2.1 (1.7, 2.5) | 166 | 17 | 10.2 (2.6, 14.9) | 4571 | 110 | 2.4 (2.0, 2.9) |
| Age-standardized# | 2.3 (1.8, 2.8) | 5.1 (2.7, 7.5) | 2.5 (2.0, 3.0) | ||||||
N= number at risk at baseline; n= incident cases; % (CI)= prevalence and 95 percent confidence interval; P = Test of trend.
US modified Criterion. Incidence of visual impairment: Persons with Baseline best-corrected visual acuity (BCVA) 20/40 or better in the 1st or 2nd eye and follow-up BCVA worse than 20/40 but better than 20/200 (not including 20/40 or 20/200) in the 1st or 2nd eye.
W.H.O. modified Criterion. Incidence of visual impairment: Persons with Baseline BCVA 20/60 or better in the 1st or 2nd eye and follow-up BCVA worse than 20/60 but better than or equal to 20/400 (not including 20/60 but including 20/400) in the 1st or 2nd eye.
This column combines the at-risk cohorts for incidence in the first eye and incidence in the second eye.
NA: No incident cases.
Age-standardized to the LALES population.