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Table 1 Demographic characteristics for participants with ASD and healthy controls

From: Saccadic eye movement abnormalities in autism spectrum disorder indicate dysfunctions in cerebellum and brainstem

Demographic characteristic Age group ASD (N = 65) Control (N = 43)
Age group (n, %) 6-11 26 (40) 15 (35)
12-18 23 (35) 12 (28)
19+ 16 (25) 16 (37)
Total 65 43
Age in years 6-11 9.4 (1.4) 9.0 (1.6)
12-18 14.0 (1.8) 14.1 (2.0)
19+ 26.3 (7.4) 26.1 (5.1)
Total 15.2 (7.7) 16.8 (8.3)
Gender (% male) 6-11 73 73
12-18 87 67
19+ 88 81
Total 82 74
Full scale IQ 6-11 100 (17)* 113 (15)
12-18 94 (19)* 107 (15)
19+ 102 (18) 110 (8)
Total 98 (18)** 110 (13)
Verbal IQ 6-11 99 (16)** 116 (19)
12-18 93 (22)* 110 (16)
19+ 109 (22) 109 (13)
Total 99 (21) 106 (12)
Nonverbal IQ 6-11 102 (18) 109 (16)
12-18 99 (19) 98 (10)
19+ 100 (22) 109 (8)
Total 100 (20) 106 (12)
ADOS Total† 6-11 12.6 (5.7)  
12-18 10.7 (3.4)  
19+ 9.8 (4.1)  
Total 11.2 (4.7)  
ADI social total 6-11 19.9 (5.8)  
12-18 21.5 (4.9)  
19+ 17.8 (6.9)  
Total 20.0 (5.8)  
ADI communication total 6-11 16.2 (4.6)  
12-18 16.9 (4.4)  
19+ 13.3 (5.8)ª  
Total 15.8 (4.9)  
ADI repetitive behavior total 6-11 6.5 (2.6)  
12-18 5.9 (2.4)  
19+ 4.8 (2.0)  
  Total 5.9 (2.4)  
  1. Means (SDs) are presented for age and IQ.
  2. *P <0.05; ** P <0.01.
  3. †ADOS totals are based on revised algorithms [61] except for those participants (n = 22) who completed Module 4.
  4. ªParticipants with ASD in the 19 years of age and older age band have significantly lower ADI Communication Total scores than those in the 12 to 18-years-old age band (P = 0.040).
  5. ASD, autism spectrum disorder; IQ, intelligence quotient; ADOS, Autism Diagnostic Observation Scale; ADI, Autism Diagnostic Interview-Revised.