The findings on EP300 are also inconsistent across studies and are based on unstandardised/non‐specified assessments; however, there is some evidence indicating the EP300 variant may be associated with less severe ID and lower rates of autism relative to the CREBBP variant, and that individuals with the EP300 variant may also experience anxiety (Negri et al., 2015). The gene discussed is CREBBP; the disease is Anxiety.