Low reliability of DNA methylation across Illumina Infinium platforms in cord blood: implications for replication studies and meta-analyses of prenatal exposures

Table 1 Overview of retained probes upon filtering of data from the EPIC and 450 k microarray platforms

	EPIC probes	450 k probes
Raw data	866,091	485,512
> 5% low-quality values	857,144	479,914
SNP-enriched probe removal	827,968	463,111
Cross-reactive probe removal	813,047	441,548
Sex chromosome removal	795,515	431,536

ISSN: 1868-7083