Table 2
Univariate predictors of ophthalmic artery stenosis and occlusion: Cox regression analysis
| Covariant | Univariate analysis | Multivariate analysis | |||
| Odds ratio (95% CI) | P value | OR (95% CI) | P value | ||
| OA diameter at first IAC | 0.001 (0.000 to 0.418) | 0.02 | 0.005 (0.001 to 0.172) | 0.001 |
|
| Percentage of OA orifice diameter differences | 2.197 (0.784 to 8.043) | 0.026 | 4.661 (3.600 to 31.741) | 0.003 | |
| Number of IAC | 1.625 (0.312 to 5.139) | 0.123 | 1.538 (1.015 to 2.232) | 0.042 | |
| Gender | 1.541 (0.373 to 6.361) | 0.55 | |||
| Age at first IAC | 0.985 (0.961 to 1.010) | 0.246 | |||
| OA diameter at ostial position at first IAC | 0.961 (1.010 to 7.175) | 0.136 | |||
| Angles between OA and ICA at first IAC | 0.971 (0.971 to 1.017) | 0.208 | |||
| Percentage of OA diameter differences | 0.010 (0.000 to 2.350) | 0.098 | |||
*Percentage of ophthalmic artery (OA) diameter differences refers to the ratio of the diameter differences between first and last intra-arterial chemotherapy (IAC) to the OA diameter at first treatment; percentage of OA orifice diameter differences refers to the ratio of the diameter differences at ostial position between first and last IAC to the diameter of OA at ostial position at first treatment.