EHR analytics offer the promise of providing answers for complex patients with multiple diseases — patients who are more frequently encountered in actual clinical practice. Interrogating
the EHR can also find gems that are relatively rare. For instance, in examining over 2 million EHRs in which 0.4 percent were patients with seizures, a startling 17 percent of these epileptics were found to have a variety of 12 autoimmune diseases — a remarkable association not previously
recognized