Primary Index score Number of children with significant deficit (Prevalence in %) 95% CI Mean +/- SD
Verbal comprehension VCI
34 (49)
37%-60%
88.4 +/- 21.6
Perceptual Reasoning PRI
35 (50)
38%-62%
89.0 +/- 18.0
Working Memory WMI
33 (47)
35%-59%
87.5 +/- 21.0
Processing speed PSI
31 (44)
32%-56%
90.3 +/- 19.0