SNP-Based Heritabilities and Coheritabilities (image) NIH/National Institute of Mental Health Share Print E-Mail Caption Common inherited genetic variation (single nucleotide polymorphisms, or SNPs) accounted for up to about 28 percent of the risk for some disorders, such as ADHD (dark green). Among pairs of disorders (light green), schizophrenia and bipolar disorder (SCZ-BPD) shared about 16 percent of the same common genetic variation (coheritabilities). Credit Cross-Disorder Group of the Psychiatric Genomics Consortium Usage Restrictions None Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.