Although psychiatric comorbidities are common in adults with CDH, their prevalence in the pediatric population remains unclear, wrote Hope O'Brien, MD, and Shalonda Slater, PhD, from the Cincinnati Children's Hospital Medical Center in Ohio. The researchers found that psychiatric disorders occurred in up to 65.5% of children and adolescents with migraine, the most common type of chronic daily headache. The prevalence was significantly higher than that previously reported by Dr Slater in 2012 (29.6%).