Table 3.

NEPSY-II Results

NEPSY-II	N	Low percentile rank scoresa CG patients (n)	Normal percentile rank scoresb CG patients (n)
Executive functioning
Inhibition
- Naming Total Errors  - Inhibition Total Errors  - Switching Total Errors	7 7 5	≤2 (1), 3–10 (1), 11–25 (1) ≤2 (1), 11–25 (2) 3–10 (1), 11–25 (2)	4 4 2
Cognitive flexibility
- Response Set, Total Correct	5	≤2 (1), 3–10 (1), 11–25 (1)	2
Attention
- Auditory Attention, Total Correct	7	≤2 (2), 3–10 (1), 11–25 (2)	2
Mental Speed
- Naming Total Completion Time  - Inhibition Total Completion Time  - Switching Total Completion Time	7 7 5	- 3–10 (2), 11–25 (5) -	7 - 5

Data reported in percentile rank scores. CG classical galactosemia

^alow percentile rank scores: ≤2: well below the reference level, 3-10: below the reference level, 11-25: borderline / just below the reference level,

^bnormal percentile rank scores: 26-75: the reference level, >75: above the reference level