methylation status of HSD11B2. Characteristics of the assay
were assessed using dilution series of fully methylated referent DNA into
fully unmethylated referent DNA. The PyroMark MD system (QIAGEN Inc.,
Germantown, MD) was used for all pyrosequencing assays. Quantitative
assessment of the extent of DNA methylation at each of the 4
HSD11B2 CpG sites was performed by using the integrated
Pyro-Q-CpG software (QIAGEN Inc.) to analyze data using previously published
methods described further in
are GRch37/hg19: 67464389, 67464395, 67464399, 67464412.Methylation
variables for the CpG sites were winsorized and natural log transformed and
analyzed as a continuous measure based on percent of methylation at each CpG
site.