Table 3. Comparison of CMA and Fragile X test results between patients with isolated ID/LD and patients with ASD.

Population	CMA sensitivity	Fragile X test sensitivity
ID/LD (no ASD)	14.5–29% (28/192–56/192)	2.5% (2/80)
ASD	5–9.5% (5/96–9/96)	0% (0/75)
Total	11.5–22.5% (33/288–65/288)	1.5% (2/155)

ASD, autism spectrum disorder; CMA, chromosome microarray analysis; ID/LD, intellectual disabilities/learning delay.