KCTD3 and schizophrenia: At birth, DNAm levels at four CpGs (annotated to potassium channel tetramerization domain containing 3, KCTD3; SHH signaling and ciliogenesis regulator, SDCCAG8; glutaredoxin, GLRX) prospectively associated with childhood LVV after genome‐wide correction; these genes have been implicated in brain development and psychiatric traits including schizophrenia.