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Table 2 Mean age at first concerns and at diagnosis and mean time taken from first concerns to diagnosis stratified by characteristics

From: Pathways to a diagnosis of autism spectrum disorder in Germany: a survey of parents

Characteristic Age at first concerns Age at diagnosis Time from first concerns to diagnosis
N Mean in months (SD) N Mean in months (SD) N Mean in months (SD)
Sex
 Male 171 24.0 (18.9) 170 78.3 (37.5) 169 54.8 (36.6)
 Female 34 20.8 (14.8) 33 79.6 (43.1) 33 58.5 (44.2)
Age groups in years
 0–11 69 19.4 (15.1) 70 55.7 (21.6) 69 36.5 (24.5)
 ≥ 12 136 25.5 (19.5) 133 90.5 (39.9) 133 65.2 (39.9)
ASD diagnosis
 Childhood autism (F84.0) 114 21.3 (16.4) 113 68.1 (35.4) 112 47.3 (34.2)
 Atypical autism (F84.1) 42 21.7 (15.2) 41 83.9 (42.0) 41 61.9 (43.6)
 Asperger syndrome (F84.5) 49 29.8 (23.2) 49 98.1 (33.7) 49 68.3 (36.7)
Intellectual functioning
 IQ ≥ 85 95 30.2 (21.2) 94 89.3 (36.6) 93 59.9 (37.1)
 IQ < 85 75 17.5 (13.3) 75 73.8 (38.5) 75 56.3 (38.8)
ADOS-2 comparison score
 Minimal to low (1–4) 27 28.1 (18.7) 25 94.4 (42.5) 25 67.4 (38.3)
 Moderate (5–7) 93 22.5 (19.5) 94 79.9 (37.3) 93 57.8 (39.4)
 High (8–10) 66 22.0 (15.8) 65 70.9 (37.5) 65 48.8 (34.5)
Highest parental level of education
 Low/middle 80 25.4 (18.1) 79 82.1 (41.0) 79 56.9 (41.7)
 High 124 22.3 (18.4) 123 76.0 (36.8) 122 54.1 (35.3)
Overall 205 23.4 (18.3) 203 78.5 (38.4) 202 55.4 (37.8)