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Table 3 Wait times for ASD diagnostic assessment (n = 57)

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

  n % Median Range Interquartile range
Wait time for first visit (time 1)    6 1–24 3–9
 1 month 3 5.3%    
 2 months 7 12.3%    
 3 months 10 17.5%    
 4 months 4 7.0%    
 5 months 1 1.8%    
 6 months 10 17.5%    
 7 months 2 3.5%    
 8–9 months 5 8.8%    
 10–12 months 7 12.3%    
 13–18 months 5 8.8%    
 19–24 months 3 5.3%    
Wait time from first visit to diagnosis (time 2)    1 0–6.5 0.5–2
 0 months 7 12.3%    
 0.25 months 3 5.3%    
 0.5 months 5 8.8%    
 0.75 months 5 8.8%    
 1 month 18 31.6%    
 1.5 months 2 3.5%    
 2 months 7 12.3%    
 3 months 4 7.0%    
 4.5 months 2 3.5%    
  ≥ 6 months 4 7.0%    
Total wait from referral to diagnosis    7 2–26 4–12
  < 2 months 3 5.3%    
 2–3 months 6 10.5%    
 4 months 6 10.5%    
 5–6 months 7 12.3%    
 7–8 months 9 15.8%    
 9–10 months 8 14.0%    
 11–12 months 2 3.5%    
 13–14 months 6 10.5%    
 15–18 months 3 5.3%    
 19–22 months 4 7.0%    
 23–26 months 3 5.3%    
  1. Percentages may not sum to 100 due to rounding