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The lowest rate was found to occur in India -- with a rate of 0.1%.
Of some of the other countries surveyed, Columbia has a rate of 2.6%, while Japan a rate of 0.7%,
This new study conducted around the world is important to learning more about bipolar disorder because it was the first study to use the same techniques to identify bipolar disorder in peoples of different countries.
The authors of the paper concluded, "Despite cross-site variation in the prevalence rates of BPS, the severity, impact, and patterns of comorbidity were remarkably similar internationally. The uniform increases in clinical correlates, suicidal behavior, and comorbidity across each diagnostic category provide evidence for the validity of the concept of BPS. Treatment needs for BPS are often unmet, particularly in low-income countries." [Paper]
To learn more about the study, please read the March 7, 2011 CNN article 'U.S. has highest bipolar rate in 11-nation study.'
Page three concludes with more information on this important study, and a quote from its lead researcher.
