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Table 2 Practice patterns for participants who diagnose ASD (n = 57)

From: Practice patterns and determinants of wait time for autism spectrum disorder diagnosis in Canada

Practice characteristic n %
Accepts referrals from family doctor
 Yes 44 77.2%
 No 12 21.1%
 Missing 1 1.8%
Number of visits to make a diagnosis of ASD
 1 visit 8 14.0%
 2 visits 33 57.9%
 3 visits 11 19.3%
 4 visits 4 7.0%
 5 visits 1 1.8%
Reported typical visit length
  < 30 min 3 5.3%
 31–60 min 20 35.1%
 61–90 min 19 33.3%
 91–120 min 8 14.0%
 121–180 min 5 8.8%
  > 180 min 2 3.5%
For what percentage of cases of ASD do you provide a definitive assessment?
 0–25% 6 10.5%
 26–50% 11 19.3%
 51–75% 4 7.0%
 76–100% 11 19.3%
 Missing 25 43.9%
Practice in MDT
 Yes 30 52.6%
 No 27 47.4%
Percentage of cases assessed with MDT
 1–25% 4 7.0%
 26–50% 3 5.3%
 51–75% 5 8.8%
 76–100% 18 31.6%
 (Did not practice in team) 0% 27 47.4%
Percentage of assessments with consultation with regional speech-language pathology
 0% 1 1.8%
 1–25% 17 29.8%
 26–50% 12 21.1%
 51–75% 9 15.8%
 76–100% 17 29.8%
 Missing 1 1.8%
Percentage of assessments with consultation with regional developmental early intervention staff
 0% 7 12.3%
 1–25% 20 35.1%
 26–50% 13 22.8%
 51–75% 6 10.5%
 76–100% 10 17.5%
 Missing 1 1.8%
Percentage of assessments with consultation with regional occupational therapist
 0% 5 8.8%
 1–25% 27 47.4%
 26–50% 11 19.3%
 51–75% 6 10.5%
 76–100% 7 12.3%
 Missing 1 1.8%
Tests ordered for the majority of assessments
 Hearing 46 80.7%
 Chromosomal microarray 39 68.4%
 Fragile X 37 64.9%
 Vision 22 38.6%
 Metabolic screening 9 15.8%
 MRI brain 4 7.0%
 MECP2 3 5.3%
 EEG 0
 Othera 2 3.5%
 None 1 1.8%
  1. aText response: “Depends on presentation”; ASD autism spectrum disorders, EEG electroencephalogram, MDT multidisciplinary team, MECP2 methyl cytosine phosphate guanine binding protein 2 (genetic testing for Rett syndrome), MRI magnetic resonance imaging; percentages may not sum to 100% due to rounding; respondents could select more than one test and these percentages will not sum to 100% as a result