Tag Archives: false positives

Depression Screenings Not Recommended!

If you’re feeling down, don’t rush to your doctor just yet. Many instances of mild depression resolve without intervention. In fact, a new analysis published in the Canadian Medical Association Journal (CMAJ) concludes that routine screening for depression isn’t beneficial or efficient.

The United States and Canada recommend screening for depression by primary care providers, but the United Kingdom says no way! The UK does not recommend screening because of a lack of evidence and ineffective use of scarce health care resources.

In addition, The UK’s National Institute for Health and Clinical Excellence guidelines, cite concerns about high rates of false-positive results (in some cases more than 50 percent), lack of evidence, high costs and resources, and the diversion of resources away from people with serious depression.

Australia’s Reckless Experiment In Early Intervention

Early intervention to prevent psychosis requires first that there be an accurate tool to identify who will later become psychotic and who will not. Unfortunately, no such accurate tool exists. The false positive rate in selecting prepsychosis is at least about 60-70% in the very best of hands and may be as high as 90% in general practice. That’s right, folks, nine misidentified non patients for one accurately identified truly prepsychotic patient. Those are totally unacceptable odds.

Australian Psychiatrist Patrick McGorry’s Global Agenda for “Pre-Psychosis Risk Syndrome” Takes A Hit from Former DSM Task Force Member, Psychiatrist Allen Frances

The “Psychosis Risk” proposal has stimulated widespread opposition (even I am told from within the Workgroup itself). The arguments against it are simply overwhelming. The false positive rate in predicting psychosis would be between 70-90%, meaning that between two and nine youngsters would be misidentified for every one accurately identified. The treatment most likely to be used would be antipsychotic medications. These have no proven efficacy in preventing psychosis, but most definitely have terrible side effects- especially enormous weight gain and its life threatening complications. These medications are overprescribed to those least able to resist- the young and those who are most financially disadvantaged.