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. Author manuscript; available in PMC: 2020 Apr 1.
Published in final edited form as: Am J Med Genet A. 2019 Feb 4;179(4):525–533. doi: 10.1002/ajmg.a.61053

Table IV.

Incidence of Molecular Subtypes within Our Cohort

Molecular Type Total Caucasian Mixed Non-Caucasian
% % % %
IC1 GOM1 10.8% 9.7% 12.5% 13.6%
IC2 LOM2 48.2% 51.6% 50.0% 31.8%
pUPD113 29.5% 25.8% 29.2% 45.5%
CDKN1C mutation 3.6% 4.3% 4.2% 0%
Chromosome 11p15 abnormality 7.9% 8.6% 4.2% 9.1%
1

Imprinting center 1 gain of methylation

2

Imprinting center 2 loss of methylation

3

Paternal uniparental disomy of chromosome 11