Table 3.
GA Growth and AREDS Treatmenta
| Characteristic | Placebo (n=15) |
Antioxidants (n=13)b |
Zinc (n=14)c |
Antioxidants and Zinc (n=26)d |
|---|---|---|---|---|
| Baseline GA area, mm2 | 5.17 | 8.83 | 6.83 | 6.06 |
| 3-Year mean growth | 5.98 | 5.75 | 6.34 | 5.05 |
| Standard error | 1.1 | 1.5 | 1.6 | 0.7 |
| Estimated mean growth | 7.89 | 6.64 | 7.31 | 6.24 |
Abbreviations: AREDS, Age-Related Eye Disease Study; GA, geographicatrophy.
a
Overall significance, P=.21. Estimates adjusted for baseline age, sex, smoking, and body mass index.
b
Main effect, P=.06; vs placebo, P=.19.
c
Main effect, P=.43; vs placebo, P=.52.
d
vs Placebo, P=.05.