Clinical Study
Ocular Risk Factors for Exudative AMD: A Novel Semiautomated Grading System
Table 2
Univariate analysis to determine the predictive value of conversion, using variables expressed in a categorical manner.
| | Variable | Pearson χ 2 | value |
| | Predominant type of drusen in the central 6000 μm | — |
0.697 | | Number of drusen | — | 0.535 | | Area covered by drusen in the central 1000 μm | — | 0.805 | | Hyperpigmentation | — | 0.515 | | Hypopigmentation | — | 0.192 | | Number of drusen <63 μm | — | 0.566 | | Number of drusen ≥63 μm and <125 μm | 6.5333 | 0.088 | | Number of drusen ≥125 μm | — | 0.848 | | Total area covered by drusen | — | 0.358 | | Total area covered by drusen in the central 3000 μm | — | 0.024 | | Total area covered by drusen in the central 6000 μm | — | 0.470 | | Confluence of drusen | — | 0.738 | | Age-related macular degeneration stage | — | 0.604 |
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