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Table 1 Patient Demographics

From: Classical galactosemia: neuropsychological and psychosocial functioning beyond intellectual abilities

Variable

All CG patients

 

Gender, n (%)

Female: 28 (58)

Male: 20 (42)

 

Age (years)

Median 16 (4–47)

 

GALT erythrocyte activity (%), n (%)

 - < 3.3

 - 3.3–8.7

 - Unknown

36 (75)

6 (12.5)

6 (12.5)

 

Diagnosis based on (n):

- Clinical symptoms (pre-NBS)

- NBS

- FS

30

12

6

 

General Intelligence (n = 48)

 FSIQ

 VIQ

 PIQ

Mean 77 (95% CI 72–80), SD 14

Mean 82 (95% CI 77–85), SD 15

Mean 78 (95% CI 73–81), SD 15

 

FSIQ, n (%)

 - FSIQ < 70

 - FSIQ ≥ 70–85

 - FSIQ > 85–100

 - FSIQ > 100

12 (25) (group 1)

20 (42) (group 2)

15 (31) (group 3)

1 (2) (group 3)

 

Wechsler scales (n)

FSIQ

VIQ

PIQ

 - WPPSI-IIINL (7)

 - WISC-IIINL (19)

 - WAIS-IVNL (22)

Mean 84, SD 11

Mean 79, SD 16

Mean 74, SD 13

Mean 84, SD 17

Mean 82, SD 16

Mean 81, SD 14

Mean 94, SD 6

Mean 76, SD 15

Mean 74, SD 13

Educational level, n (%)

- Elementary school (n = 48)

- Normal education

- Special education

- Unknown

25 (52)

15 (31)

8 (17)

 

- Secondary school (n = 32)

- Normal education

- Special education

- Unknown

- Not applicable (age < 12y)

16 (50)

9 (28)

7 (22)

16 (33)

 

- Educational attainment patientsa

n = 17

Educational attainment Dutch population b

 

1. Low educational level

2. Secondary educational level

3. High educational level

Unknown

35%

47%

6%

12%

1.Low educational level

2. Secondary educational level

3. High educational level

Unknown

31.5%

38.5%

29%

1.5%

  1. CG classical galactosemia, GALT galactose-1-phosphate uridyltransferase, NBS newborn screening, FS family screening, FSIQ full scale IQ, VIQ verbal IQ, PIQ performal IQ, WPPSI Wechsler Preschool and Primary Scale of Intelligence, WISC Wechsler Intelligence Scale for Children, WAIS Wechsler Adult Intelligence Scale. a Highest level of completed education, b Data from the Dutch National Bureau of Statistics