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| Variable | Odds ratio | 95% Confidence interval | p |
| Absence of early cerebral ischemia | 0.41 | 0.17–0.97 | 0.040 |
| No shunting procedure | 4.00 | 1.14–14.05 | 0.021 |
Univariate analysis via chi-square test was performed to detect the significant predictors of late improvement from 6 months to 1 year. n = 153 (4 missing).
