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Table 3 Mean scores for each subgroup in the 2-class models in analysis 1 and 2

From: Fetal alcohol spectrum disorder: neurodevelopmentally and behaviorally indistinguishable from other neurodevelopmental disorders

Observed variable/measure

Analysis 1

FASD vs. Typically developing control children

Analysis 2

FASD vs. Typically developing control children and children with other neurodevelopmental disorders

Subgroup 1a

Subgroup 2a

d

t-score

p-value

Subgroup 1b

Subgroup 2b

d

t-score

p-value

Mean

SD

Mean

SD

Mean

SD

Mean

SD

Neurodevelopmental Test Battery

 WASI-II: block design

8.79

2.62

12.32

3.88

1.03

4.135

< 0.001

9.17

2.79

12.63

3.71

1.07

4.785

< 0.001

 WASI-II: similarities

7.79

2.57

10.47

3.22

0.99

3.863

< 0.001

8.08

2.35

10.63

3.09

0.94

4.212

< 0.001

 WASI-II: vocabulary

7.96

3.18

12.00

3.70

1.16

4.450

< 0.001

8.27

3.01

12.11

3.55

1.18

5.311

< 0.001

 WISC-IV: coding

5.63

3.44

10.15

2.35

1.59

5.590

< 0.001

5.75

3.08

10.58

2.15

1.78

8.549

< 0.001

 WISC-IV: symbol search

6.79

2.47

11.59

2.58

1.89

7.152

< 0.001

7.08

2.41

11.68

2.64

1.83

8.331

< 0.001

 NEPSY-II: arrows

7.25

3.23

11.59

2.45

1.55

5.544

< 0.001

7.75

3.31

11.87

2.03

1.46

7.098

< 0.001

 NEPSY-II: response set

7.13

3.48

11.82

2.79

1.52

5.485

< 0.001

7.91

3.29

12.03

2.87

1.32

6.191

< 0.001

 NEPSY-II: word generation (letter)

8.08

3.23

10.37

2.63

0.79

2.861

0.006

8.29

2.94

10.72

2.52

0.88

4.127

< 0.001

Child Behavior Checklist

 Attention problems

60.73

8.08

51.53

2.30

1.68

5.421

< 0.001

62.38

8.22

53.13

5.16

1.32

6.374

< 0.001

 Rule breaking behavior

56.08

6.67

51.88

2.96

0.87

2.885

0.007

56.50

7.19

52.76

4.03

0.62

3.042

0.003

  1. d Cohen’s d, SD Standard deviation
  2. aSubgroup 1 is comprised of 20 children with FASD and four typically developing control children; and Subgroup 2 is comprised of one child with FASD and 33 typically developing control children
  3. bSubgroup 1 is comprised of 20 children with FASD, 22 children with other neurodevelopmental disorders, and six typically developing control children; and Subgroup 2 is comprised of one child with FASD, six children with other neurodevelopmental disorders, and 31 typically developing control children