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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.