Table 2. Multivariate analysis of risk factors for abnormal peripheral FAF.
| Factor | Frequency of peripheral FAF abnormality (%) | Odds ratio | 95% CI | P value |
|---|---|---|---|---|
|
| ||||
| Gender | fc | |||
| Male | 59.1 | 1 | - | <0.001 |
| Female | 77.3 | 4.1 | 1.9 - 8.9 | |
|
| ||||
| AMD type | ||||
| None | 18.4 | 1 | - | - |
| Non-neovascular | 72.8 | 6.2 | 2.1 – 17.8 | 0.001 |
| Neovascular | 86.0 | 12.7 | 3.8 – 41.9 | <0.001 |
|
| ||||
| Age range | ||||
| <75 | 36.4 | - | - | - |
| 76 – 79 | 81.6 | 4.9 | 1.8 – 13.5 | 0.002 |
| 80 – 85 | 86.8 | 11.3 | 3.8 – 33.3 | <0.001 |
| >85 | 86.2 | 6.5 | 2.4 – 17.8 | <0.001 |
The variables in this multivariate model were gender, type of AMD and age grouped into quartiles.
AMD = Age-related macular degeneration, FAF = fundus autofluorescence, CI = confidence interval