. Author manuscript; available in PMC: 2018 Oct 24.

Published in final edited form as: J Hum Genet. 2018 Apr 24;63(7):795–801. doi: 10.1038/s10038-018-0451-x

Table II.

Known prevalence of recurrent deletion syndromes and percent of cases in Baylor Genetics Laboratories.

Syndrome	Prevalence of live births	Percent of CMA cases
SMS	0.004–0.006% (1/25000-1/15000)⁷	0.08
WBS	0.013%-0.005% (1/7500–1/20000)⁵	0.18
PWS/AS	PWS 0.006% AS 0.005–0.008% (combined (0.011%–0.014%)^2,3	0.23
VCFS	0.0625–0.05% (1/1600–1/2000)⁶	0.51
17q12 Deletion Syndrome	0.007% (1/14,500)⁸	0.079
HNPP	0.016% (1/6250)⁴	0.059

SMS: Smith-Magenis Syndrome, WBS: Williams-Beuren Syndrome, PWS/AS: Prader-Willi Syndrome/Angelman Syndrome, VCFS: Velocardiofacial Syndrome, CMA: chromosomal microarray