APOB and attention deficit-hyperactivity disorder: Both DMRs were hypermethylated in the participants with persistent ADHD (Figures 1D, E); one was located within 200 bp of the transcription start site of the APOB gene, spanning 485 bp, consisting of 10 measured CpGs (Šidák-corrected p-value = 1.66 * 10−24, Figure 1D), and one was present in the LPAR5 gene, spanning 123 bp and containing four probes (Šidák-corrected p-value = 9.06 * 10−7, Figure 1E).