Report by Deborah Brauser for Medscape Medical News from the APA's annual conference at which field test results were presented.
http://www.medscape.com/viewarticle/763519
From Medscape Medical News > Psychiatry
DSM-5 Field Trials Generate Mixed Results
Deborah Brauser
"May 8, 2012 (Philadelphia, Pennsylvania) Preliminary results are mixed for the recently completed field trials for the upcoming Diagnostic andStatistical Manual of Mental Disorders, Fifth Edition (DSM-5), according to the first public presentation of the findings here at the American Psychiatric Association's (APA's) 2012 Annual Meeting."
"Diagnostic criteria for autism spectrum disorder, posttraumatic stress disorder (PTSD), and attention-deficit/hyperactivity disorder (ADHD) in children were found to be very reliable."
"Conditions that did not do well included major depressive disorder (MDD), in adults and in children, and general anxiety disorder (GAD)..."
"...Members of the task force said they hope to publish the full results "within a month." However, the third and final public comment period for the manual opened last week and ends on June 15. Although the entire period is 6 weeks long, the public may only have 2 weeks to comment after the publication of the field trials' findings."
"From all accounts, the manual is still on track for publication right before next year's APA Annual Meeting in San Francisco."
"As reported by Medscape Medical News, the field trials began in the fall of 2010 to test newly recommended diagnostic criteria in both academic and "routine" clinical settings."
"A total of 11 academic sites 7 that focused on adults, 4 that focused on children/adolescents were involved in the process, which included a baseline assessment by a clinician followed by a second assessment within 2 weeks by a different clinician to test criteria reliability."
"In addition, volunteer clinicians, including psychiatrists, psychologists, and social workers from smaller, clinical settings were included. These participants went through initial Web-based training and then selected and evaluated 2 patients each."
"A total of 665 children and adolescent patients and 1593 adult patients were included in the field trials."
"No previous field trial had such a sophisticated design. And it has resulted in more statistically significant data for specific disorders," said Dr. Regier."
"The current DSM-5 field trials, as well as field trials for past manuals, use Kappa score as a statistical measure of criteria reliability. A Kappa score of 1.0 was considered perfect, a score of greater than .8 was considered almost perfect, a score of .6 to .8 was considered good to very good, a score of .4 to .6 was considered moderate, a score of .2 to .4 was considered fair and could be accepted, and a score of less than .2 was considered poor."
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The field trials on CSSD were held at Mayo. According to one of several tables in Ms Brauser's report the following data were released for "Complex somatic disorder"
Complex somatic disorder
DSM-5 .60 (.41 - .78)
DSM-IV
ICD-10 .45
DSM-III .42
Since
Complex Somatic Symptom Disorder is a newly proposed category for DSM-5 which absorbs the existing DSM-IV categories
Somatization Disorder
Hypochondriasis
Undifferentiated Somatoform Disorder
Pain Disorder
and does not exist in ICD-10 nor did it exist in DSM-III. It's unclear what category data have been used for the kappa comparisons for ICD-10 and DSM-III.