Table 3.
Uni- and multivariate analysis for risk factors influencing the ETVSS for patients treated with STS.
| variable | odds ratio | 95% CI | p value |
|---|---|---|---|
| Univariate analysis | |||
| Evans index | 0.1 | −0.041 - 0.9 | 0.8 |
| Diameter “clivus-basilar artery” | 1.8 | −13.4 - 7.1 | 0.2 |
| Age | 4.0 | −244.8 - 74.5 | 0.05 |
| Sex (m vs. f) | 4.1 | −5.9 - 81.5 | 0.04 |
| Pre-OP symptoms | |||
| Headache | 0.2 | −2.0 - 4.6 | 0.6 |
| Nausea | 0.1 | −1.9 - 3.2 | 0.7 |
| Cognitive impairment | 0.1 | −3.3 - 3.1 | 0.8 |
| Seizures | 3.1 | −0.1 - 3.4 | 0.08 |
| Gait disorder | 1.1 | −1.1 - 5.3 | 0.3 |
| Visual abnormalities | 0.05 | −2.4 - 4.2 | 0.8 |
| Urinary incontinence | 1.2 | −2.9 - 3.0 | 0.3 |
| Multivariate analysis | |||
| Age | 2.1 | 0.001 - 3.1 | 0.04 |
| Sex (m vs. f) | 1.0 | −1.0 - 3.0 | 0.3 |