Rapid cycling is equivalently prevalent in bipolar I and bipolar II disorder, and is associated with female gender and greater severity of illnessPhenomenology of rapid cycling bipolar disorder: Data from the first 500 participants in the Systematic Treatment Enhancement Program.

Mackin, Dr Paul MB BS, PhD, MRCPsych (commentator)
Schneck, CD
Miklowitz, DJ
Calabrese, JR
et al,

School of Neurology Neurobiology and Psychiatry, University of Newcastle upon Tyne, UK

Schneck CD, Miklowitz DJ, Calabrese JR, et al. Phenomenology of rapid cycling bipolar disorder: Data from the first 500 participants in the Systematic Treatment Enhancement Program. Am J Psychiatry 2004; 161: 1902–8.SchneckCDMiklowitzDJCalabreseJRet alPhenomenology of rapid cycling bipolar disorder: Data from the first 500 participants in the Systematic Treatment Enhancement Program.Am J Psychiatry20041611902-8Q How prevalent is rapid cycling in people with bipolar disorder and do demographic and clinical variables differ between rapid cyclers and non-rapid cyclers?

For correspondence: Dr C D Schneck, Department of Psychiatry, University of Colorado Health Sciences Center, 4455 East 12th Ave., Box A011–15, Denver, CO 80220, USA; [email protected]

Sources of funding: National Institute of Mental Health, USA.

Evidence-Based Mental Health 8(2):p 52, May 2005.