Table 1.

Demographics and genetic tests performed in each group of autism spectrum disorder (ASD) patients.

	Patients < 5 Years Old (N = 179)	Patients ≥ 5 Years Old (N = 164)	Total (N = 343)
Gender (male/female)	133/46	125/39	258/85
Age at diagnosis, mean (min–max)	2.82 (1–4)	9.46 (5–45)	6.0 (1–45)
Genetic testing, n
FMR1 + CMA + WES	53	53	106 (30.9%)
CMA + WES	37	46	83 (24.2%)
CMA (±FMR1)	65	53	118 (34.4%)
WES (±FMR1)	24	12	36 (10.5%)
Total	179	164	343 (100%)

FMR1 = FMR1 testing, CMA = chromosomal microarray; WES = whole exome sequencing.