See Martin Holtmann and colleagues, “Bipolar disorder in children and adolescents in Germany: national trends in the rates of inpatients, 2000 – 2007,” Bipolar Disorders, volume 12, pp. 155 – 163, 2010, full text available online at http://onlinelibrary.wiley.com/doi/10.1111/j.1399-5618.2010.00794.x/full. Among adolescents, Holtmann and colleagues note that an adolescent in the United States is still much more likely (about 40 times more likely) to be diagnosed with bipolar disorder t...
