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Correlation between absolute and estimated values of macular pigment optical density
| Groups | R2 | P value |
|---|---|---|
| Young healthy | 0.885 | 0.0001** |
| Aged heathy | 0.765 | 0.001** |
| AMD-fellow | 0.851 | 0.0001** |
| AMD | 0.860 | 0.013* |
Spearman’s correlation coefficient analysis. AMD age-related macular degeneration *P < 0.05, **P < 0.01
