Table 2.
Descriptive Analysis and Group Comparisons
| Mean (SD) | P * | |||||
|---|---|---|---|---|---|---|
| Control | Early AMD | iAMD | Early AMD vs. iAMD | Early AMD vs. Control | iAMD vs. Control | |
| Drusen load, mm3 | 0.000236 (0.0003033) | 0.002718 (0.0015339) | 0.135821 (0.1945323) | <0.001 | <0.001 | <0.001 |
| BCVA | 87.6 (4.1) | 83.5 (4,1) | 81.6 (6.8) | 0.306 | 0.016 | <0.001 |
| LLVA | 74.0 (4.6) | 70.0 (6.4) | 64.0 (9.3) | 0.008 | 0.06 | <0.001 |
| MAC-VA | 68.4 (3.9) | 64.1 (4.2) | 60.1 (6.7) | 0.026 | 0.006 | <0.001 |
| Contrast sensitivity | 38.2 (2.9) | 37.0 (3.6) | 33.6 (3.1) | <0.001 | 0.137 | <0.001 |
| IReST | 166.8 (21.9) | 162.7 (23.9) | 149.6 (28.1) | 0.077 | 0.693 | 0.012 |
| Mesopic microperimetry | 26.2 (1.7) | 24.9 (3.2) | 23.0 (2.8) | 0.016 | 0.056 | <0.001 |
| Dark-adapted microperimetry | 22.7 (1.4) | 23.1 (5.7) | 20.5 (2.4) | 0.004 | 0.715 | <0.001 |
*
P values are based on the Wilcoxon rank-sum test.
Bold numbers indicate statistical significance.