DNA methylation anaylsis of placenta samples exposed to variable levels of arsenic during pregnancy
Genome-wide profiling of placental DNA methylation in relation to arsenic exposure. The Illumina 450k methylation array was used to profile 343 samples for which 3 different measurements of arsenic exposure were available during gestation. These samples have been collected from the New Hampshire Birth Cohort Study (NHBCS).
Provenance — who produced it, who reused it
Linked to 6 papers in the literature. Roles are inferred factual signals (who deposited the data vs who reused it), with counts — never a judgement about any author.
- Placental epigenetic clocks: estimating gestational age using pl... 2019 · 170 cites
- Accurate ethnicity prediction from placental DNA methylation dat... 2019 · 82 cites
4 further papers cite this accession but reuse could not be confirmed.
Deep data QC
metadata only · no data-level QC for this typeStandardized, field-standard QC computed by touching the data — every metric states how it was obtained
No quantitative QC rubric exists for this data type yet, so it is deliberately left unscored — this is an honest "not applicable", not a poor rating.
measured = computed from the data · extrapolated/reported = derived or from the repository · dq-1.0 · provisional — verify independently
Scientific quality
Based on hands-on reproduction of the papers that use this dataset. A reproducible paper that stands on this data is positive evidence; a flagged one is a prompt to look closer — never a verdict on the dataset itself without the evidence.