Table 3 Open in new tab Demographic and...

	ASD1 (n = 32)	ASD2 (n = 25)	Group comparison
Gender	6 female	4 female	χ²(1) = 0.1, P = 0.79
Handedness	7 left	2 left	χ²(1) = 2.0, P = 0.15
Age (years)	14.0 (2.4)	10.4–18.0	13.4 (2.9)	9.0–17.8	t(55) = 0.9, P = 0.38
Verbal IQ	102.3 (18.1)	73–147	101.7 (16.7)	70–131	t(55) = 0.1, P = 0.90
Non-verbal IQ	104.4 (19.6)	53–140	109.5 (17.6)	70–145	t(55) = −1.0, P = 0.32
Full-Scale IQ	103.6 (17.7)	66–141	105.4 (16.8)	73–139	t(55) = −0.4, P = 0.70
RMSD	0.07 (0.03)	0.02–0.11	0.06 (0.02)	0.03–0.11	t(55) = 1.3, P = 0.20
ADOS^a
Social interaction	7.2 (2.4)	2–12	8.2 (3.1)	3–14	t(52) = −1.4, P = 0.18
Communication	3.8 (2.3)	0–13	4.1 (1.9)	2–8	t(52) = −0.6, P = 0.55
Repetitive/Restricted	2.2 (1.4)	0–5	2.1 (1.6)	0–5	t(52) = 0.2, P = 0.84
ADI-R^b
Social interaction	17.7 (4.7)	7–28	19.2 (5.4)	6–28	t(54) = −1.1, P = 0.28
Communication	12.1 (4.4)	2–22	15.3 (5.2)	6–24	t(54) = −2.4, P = 0.02*
Repetitive behavior	6.3 (2.0)	2–12	5.7 (2.4)	1–11	t(54) = 1.1, P = 0.26
Psychotropic medication use	15 reported	12 reported	χ²(1) = 0.01, P = 0.93
Comorbidities (ADHD, depression, anxiety)	10 reported	9 reported	χ²(1) = 0.14, P = 0.71
Speech Onset Delay^c
Age of first words	18.4 (8.5) 9–36	28.6 (13.2) 10–50	t(39) = 0.37, P = 0.71
Age of first phrases	19.5 (9.7) 10–36	34.4 (12.0) 14–48	t(39) = 1.41, P = 0.17

ASD1 (n = 32)

ASD2 (n = 25)

Group comparison

Mean (SD)

Range

Mean (SD)

Range

Gender

6 female

4 female

χ²(1) = 0.1, P = 0.79

Handedness

7 left

2 left

χ²(1) = 2.0, P = 0.15

Age (years)

14.0 (2.4)

10.4–18.0

13.4 (2.9)

9.0–17.8

t(55) = 0.9, P = 0.38

Verbal IQ

102.3 (18.1)

73–147

101.7 (16.7)

70–131

t(55) = 0.1, P = 0.90

Non-verbal IQ

104.4 (19.6)

53–140

109.5 (17.6)

70–145

t(55) = −1.0, P = 0.32

Full-Scale IQ

103.6 (17.7)

66–141

105.4 (16.8)

73–139

t(55) = −0.4, P = 0.70

RMSD

0.07 (0.03)

0.02–0.11

0.06 (0.02)

0.03–0.11

t(55) = 1.3, P = 0.20

ADOS^a

Social interaction

7.2 (2.4)

2–12

8.2 (3.1)

3–14

t(52) = −1.4, P = 0.18

Communication

3.8 (2.3)

0–13

4.1 (1.9)

2–8

t(52) = −0.6, P = 0.55

Repetitive/Restricted

2.2 (1.4)

0–5

2.1 (1.6)

0–5

t(52) = 0.2, P = 0.84

ADI-R^b

Social interaction

17.7 (4.7)

7–28

19.2 (5.4)

6–28

t(54) = −1.1, P = 0.28

Communication

12.1 (4.4)

2–22

15.3 (5.2)

6–24

t(54) = −2.4, P = 0.02*

Repetitive behavior

6.3 (2.0)

2–12

5.7 (2.4)

1–11

t(54) = 1.1, P = 0.26

Psychotropic medication use

15 reported

12 reported

χ²(1) = 0.01, P = 0.93

Comorbidities (ADHD, depression, anxiety)

10 reported

9 reported

χ²(1) = 0.14, P = 0.71

Speech Onset Delay^c

Age of first words

18.4 (8.5) 9–36

28.6 (13.2) 10–50

t(39) = 0.37, P = 0.71

Age of first phrases

19.5 (9.7) 10–36

34.4 (12.0) 14–48

t(39) = 1.41, P = 0.17

	ASD1 (n = 32)	ASD2 (n = 25)	Group comparison
Gender	6 female	4 female	χ²(1) = 0.1, P = 0.79
Handedness	7 left	2 left	χ²(1) = 2.0, P = 0.15
Age (years)	14.0 (2.4)	10.4–18.0	13.4 (2.9)	9.0–17.8	t(55) = 0.9, P = 0.38
Verbal IQ	102.3 (18.1)	73–147	101.7 (16.7)	70–131	t(55) = 0.1, P = 0.90
Non-verbal IQ	104.4 (19.6)	53–140	109.5 (17.6)	70–145	t(55) = −1.0, P = 0.32
Full-Scale IQ	103.6 (17.7)	66–141	105.4 (16.8)	73–139	t(55) = −0.4, P = 0.70
RMSD	0.07 (0.03)	0.02–0.11	0.06 (0.02)	0.03–0.11	t(55) = 1.3, P = 0.20
ADOS^a
Social interaction	7.2 (2.4)	2–12	8.2 (3.1)	3–14	t(52) = −1.4, P = 0.18
Communication	3.8 (2.3)	0–13	4.1 (1.9)	2–8	t(52) = −0.6, P = 0.55
Repetitive/Restricted	2.2 (1.4)	0–5	2.1 (1.6)	0–5	t(52) = 0.2, P = 0.84
ADI-R^b
Social interaction	17.7 (4.7)	7–28	19.2 (5.4)	6–28	t(54) = −1.1, P = 0.28
Communication	12.1 (4.4)	2–22	15.3 (5.2)	6–24	t(54) = −2.4, P = 0.02*
Repetitive behavior	6.3 (2.0)	2–12	5.7 (2.4)	1–11	t(54) = 1.1, P = 0.26
Psychotropic medication use	15 reported	12 reported	χ²(1) = 0.01, P = 0.93
Comorbidities (ADHD, depression, anxiety)	10 reported	9 reported	χ²(1) = 0.14, P = 0.71
Speech Onset Delay^c
Age of first words	18.4 (8.5) 9–36	28.6 (13.2) 10–50	t(39) = 0.37, P = 0.71
Age of first phrases	19.5 (9.7) 10–36	34.4 (12.0) 14–48	t(39) = 1.41, P = 0.17

Table 3

Open in new tab

Demographic and diagnostic information for ASD subgroups

	ASD1 (n = 32)		ASD2 (n = 25)		Group comparison
	Mean (SD)	Range	Mean (SD)	Range
Gender	6 female		4 female		χ²(1) = 0.1, P = 0.79
Handedness	7 left		2 left		χ²(1) = 2.0, P = 0.15
Age (years)	14.0 (2.4)	10.4–18.0	13.4 (2.9)	9.0–17.8	t(55) = 0.9, P = 0.38
Verbal IQ	102.3 (18.1)	73–147	101.7 (16.7)	70–131	t(55) = 0.1, P = 0.90
Non-verbal IQ	104.4 (19.6)	53–140	109.5 (17.6)	70–145	t(55) = −1.0, P = 0.32
Full-Scale IQ	103.6 (17.7)	66–141	105.4 (16.8)	73–139	t(55) = −0.4, P = 0.70
RMSD	0.07 (0.03)	0.02–0.11	0.06 (0.02)	0.03–0.11	t(55) = 1.3, P = 0.20
ADOS^a
Social interaction	7.2 (2.4)	2–12	8.2 (3.1)	3–14	t(52) = −1.4, P = 0.18
Communication	3.8 (2.3)	0–13	4.1 (1.9)	2–8	t(52) = −0.6, P = 0.55
Repetitive/Restricted	2.2 (1.4)	0–5	2.1 (1.6)	0–5	t(52) = 0.2, P = 0.84
ADI-R^b
Social interaction	17.7 (4.7)	7–28	19.2 (5.4)	6–28	t(54) = −1.1, P = 0.28
Communication	12.1 (4.4)	2–22	15.3 (5.2)	6–24	t(54) = −2.4, P = 0.02*
Repetitive behavior	6.3 (2.0)	2–12	5.7 (2.4)	1–11	t(54) = 1.1, P = 0.26
Psychotropic medication use	15 reported		12 reported		χ²(1) = 0.01, P = 0.93
Comorbidities (ADHD, depression, anxiety)	10 reported		9 reported		χ²(1) = 0.14, P = 0.71
Speech Onset Delay^c
Age of first words	18.4 (8.5) 9–36		28.6 (13.2) 10–50		t(39) = 0.37, P = 0.71
Age of first phrases	19.5 (9.7) 10–36		34.4 (12.0) 14–48		t(39) = 1.41, P = 0.17

	ASD1 (n = 32)		ASD2 (n = 25)		Group comparison
	Mean (SD)	Range	Mean (SD)	Range
Gender	6 female		4 female		χ²(1) = 0.1, P = 0.79
Handedness	7 left		2 left		χ²(1) = 2.0, P = 0.15
Age (years)	14.0 (2.4)	10.4–18.0	13.4 (2.9)	9.0–17.8	t(55) = 0.9, P = 0.38
Verbal IQ	102.3 (18.1)	73–147	101.7 (16.7)	70–131	t(55) = 0.1, P = 0.90
Non-verbal IQ	104.4 (19.6)	53–140	109.5 (17.6)	70–145	t(55) = −1.0, P = 0.32
Full-Scale IQ	103.6 (17.7)	66–141	105.4 (16.8)	73–139	t(55) = −0.4, P = 0.70
RMSD	0.07 (0.03)	0.02–0.11	0.06 (0.02)	0.03–0.11	t(55) = 1.3, P = 0.20
ADOS^a
Social interaction	7.2 (2.4)	2–12	8.2 (3.1)	3–14	t(52) = −1.4, P = 0.18
Communication	3.8 (2.3)	0–13	4.1 (1.9)	2–8	t(52) = −0.6, P = 0.55
Repetitive/Restricted	2.2 (1.4)	0–5	2.1 (1.6)	0–5	t(52) = 0.2, P = 0.84
ADI-R^b
Social interaction	17.7 (4.7)	7–28	19.2 (5.4)	6–28	t(54) = −1.1, P = 0.28
Communication	12.1 (4.4)	2–22	15.3 (5.2)	6–24	t(54) = −2.4, P = 0.02*
Repetitive behavior	6.3 (2.0)	2–12	5.7 (2.4)	1–11	t(54) = 1.1, P = 0.26
Psychotropic medication use	15 reported		12 reported		χ²(1) = 0.01, P = 0.93
Comorbidities (ADHD, depression, anxiety)	10 reported		9 reported		χ²(1) = 0.14, P = 0.71
Speech Onset Delay^c
Age of first words	18.4 (8.5) 9–36		28.6 (13.2) 10–50		t(39) = 0.37, P = 0.71
Age of first phrases	19.5 (9.7) 10–36		34.4 (12.0) 14–48		t(39) = 1.41, P = 0.17

^aSubdomain data not available for 3 ASD2 participants.

^bSubdomain data not available for 1 ASD2 participant.

*Indicates an uncorrected significance level of P < 0.05.

^cData in months obtained from ADI-R not available for 7 ASD1 participants and 9 ASD2 participants.

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