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Table 3 Descriptive statistics and critical facial distances for the pairs of high- and low-AQ groups for each sex

From: Sexually dimorphic facial features vary according to level of autistic-like traits in the general population

 

Males

Females

 

Low-AQ

High-AQ

P

Low-AQ

High-AQ

P

( n= 33)

( n= 25)

 

( n= 33)

( n= 21)

 

AQ score

      

  M (SD)

8.82 (1.04)

25.20 (2.26)

 

6.58 (1.60)

26.48 (3.63)

 

  Range

7 to 10

22 to 30

 

1 to 8

22 to 35

 

Age

      

  M (SD)

19.24 (1.20)

19.72 (2.01)

 

18.91 (1.63)

19.29 (1.15)

 

  Range

17 to 22

17 to 26

 

17 to 23

17 to 22

 

Facial distances (mm)

      

  Forehead width

      

  M (SD)

126.01 (5.74)

121.11 (5.69)

.002

110.63 (5.11)

116.53 (4.73)

<.001

  Outer canthal width

      

  M (SD)

98.38 (4.38)

94.26 (4.47)

.001

90.95 (3.61)

96.59 (4.44)

<.001

  Nasal bridge length

      

  M (SD)

49.37 (4.38)

46.17 (3.69)

.005

43.83 (3.00)

40.40 (3.64)

<.001

  Nasal tip protrusion

      

  M (SD)

21.62 (1.94)

18.65 (2.29)

<.001

19.52 (2.10)

19.90 (2.31)

.538

  Philtrum length

      

  M (SD)

22.99 (2.17)

23.67 (3.05)

.323

21.25 (2.49)

21.62 (2.58)

.601

  Nose width

      

  M (SD)

32.81 (3.10)

32.46 (2.42)

.642

28.58 (2.10)

30.38 (2.01)

.003

Facial area (mm2)

      

  M (SD)

24,600 (1,670)

24,500 (1,870)

.807

22,800 (1,620)

23,100 (1,650)

.569

  1. M, mean; SD, standard deviation; AQ, Autism-spectrum Quotient.