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Table 1 Clinical and sociodemographic characteristics for children included in study cohort

From: Association between rare, genetic variants linked to autism and ultrasonography fetal anomalies in children with autism spectrum disorder

Variable

 

No UFAs

(Controls)

(n = 83)

Any UFA (Cases) (n = 43)

P values#

SM

(n = 26) *

SA

(n = 20) *

Sociodemographic background

Ethnicity (Jewish)

No. (%)

60(72.3)

33(76.7)

1.00 a

 

20(76.9)

14(70.0)

1.00

1.00

Sex (male)

No. (%)

68(81.9)

30(69.8)

0.360 a

  

17(65.4)

15(75.0)

0.228

1.00

Pregnancy and birth details

Mother’s age (years)

Mean ± SD

29.4 ± 6.3

29.3 ± 5.5

1.00b

 

28.4 ± 5.7

30.5 ± 4.7

1.00

1.00

Gestational age at birth (weeks)

Mean ± SD

38.9 ± 2.1

39.1 ± 1.6

1.00b

 

39.5 ± 1.4

38.5 ± 1.7

0.933

1.00

C section

No. (%)

19(25.0)

13(32.5)

1.00 a

 

6(23.1)

8(47.1)

1.00

0.249c

Birth weight (g)

Mean ± SD

3181 ± 611

3165 ± 563

1.00b

 

3073 ± 541

3169 ± 603

1.00

1.00

1-min low APGAR score (< 7)

No. (%)

7(20.6)

3(14.3)

1.00a

 

2(15.5)

1(9.1)

1.00

1.00

Ultrasound details

Gestation age assessed by last menstrual period

No. (%)

50(70.4)

25(73.5)

1.00a

 

15(68.2)

13(86.7)

1.00

1.00c

Gestational age at ultrasound (weeks)

Mean ± SD

23.7 ± 3.3

23.5 ± 2.9

1.00b

 

22.9 ± 1.9

24.3 ± 3.6

0.291

1.00

Breech presentation on ultrasound scan

No. (%)

22(28.2)

10(25.6)

1.00a

 

8(30.8)

3(18.8)

1.00

1.00c

Normal amniotic fluid

No. (%)

80(96.4)

41(95.3)

1.000 c

 

24(92.3)

19(95.0)

1.00

1.00

Clinical severity

Diagnosis age (years)

Mean ± SD

2.7 ± 1.1

3.1 ± 1.3

0.363 b

 

3.1 ± 1.4

3.0 ± 1.0

0.459

1.00

Cognitive score (IQ)

Mean ± SD

74.8 ± 16.4

80.3 ± 16.6

0.659 b

 

82.4 ± 19.1

74.8 ± 13.3

0.477

1.00

PLS score

Mean ± SD

61.7 ± 20.6

74.5 ± 24.1

0. 237 b

 

82.2 ± 25.3

57.7 ± 11.5

0.141

1.00

ADOS Comparison Score

Median (IQR)

8(6–9)

8.5(6.75-10)

0.783 d

 

8.5(6.25–9.75)

8.5(6.75-10)

0.627

DSM5-A (Social Domain),

no. (%)

RS

6(8.3)

4(12.5)

1.00a

3(15.8)

2(12.5)

RSS

25(34.7)

8(25.0)

3(15.8)

6(37.5)

0.693

1.00

RVSS

41(56.9)

20(62.5)

13(68.4)

8(50.0)

DSM5-B (Restrictive-Repetitive Domain),

No. (%)

RS

8(11.1)

4(12.5)

1.00a

3(15.8)

1(6.3)

RSS

36(50.0)

16(50.0)

9(47.4)

9(56.3)

1.00

1.00

RVSS

28(38.9)

12(37.5)

7(36.8)

6(37.5)

  1. ADOS = Autism Diagnostic Observation Schedule; RS = requiring support; RSS = requiring substantial support; RVSS = requiring very substantial support; SM = soft marker; SA = structural anomaly; UFAs = ultrasonographic fetal anomalies
  2. *Three children had both structural anomalies and soft markers
  3. #P values for the comparison between the control group (No UFA) and the three case groups (Any UFA, SA, and SM) based on the following tests: a Chi-square; b Two-sided t-test; c Fisher; d Mann-Whitney. All P values are Bonferroni corrected for multiple comparisons (N = 3)