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. Author manuscript; available in PMC: 2015 Feb 1.
Published in final edited form as: Neurosurgery. 2014 Feb;74(2):182–195. doi: 10.1227/NEU.0000000000000241

Table 6.

Preoperative and postoperative IQ in patients who underwent both pre- and postoperative testing (n=27), and the correlation between preoperative variables and change in FSIQ.

Preoperative FSIQ Postoperative FSIQ P*
  63.9 ± 9.9 61.4 ± 14.1 .27
Preoperative variable vs. ΔFSIQ
 Preoperative FSIQ .82
 Age at seizure onset .40
 Age at hemispherectomy .10
 Duration of seizures .19
 Side of hemispherectomy .80
*

FSIQ displayed as mean ± SD; paired samples t-test for group-level comparison of FSIQ, Spearman correlation for continuous variables, Wilcoxon rank-sum test for categorical variable (side of hemispherectomy)