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Wednesday, May 11, 2022

Bias in mental health diagnosis gets in the way of treatment

Howard N. Garb
psyche.co
Originally posted 2 MAR 22

Here is an excerpt:

What about race-related bias? 

Research conducted in the US indicates that race bias is a serious problem for the diagnosis of adult mental disorders – including for the diagnosis of PTSD, depression and schizophrenia. Preliminary data also suggest that eating disorders are underdiagnosed in Black teens compared with white and Hispanic teens.

The misdiagnosis of PTSD can have significant economic consequences, in addition to its implications for treatment. In order for a US military veteran to receive disability compensation for PTSD from the Veterans Benefits Administration, a clinician has to diagnose the veteran. To learn if race bias is present in this process, a research team compared its own systematic diagnoses of veterans with diagnoses made by clinicians during disability exams. Though most clinicians will make accurate diagnoses, the research diagnoses can be considered more accurate, as the mental health professionals who made them were trained to adhere to diagnostic criteria and use extensive information. When veterans received a research diagnosis of PTSD, they should have also gotten a clinician’s diagnosis of PTSD – but this occurred only about 70 per cent of the time.

More troubling is that, in cases where research diagnoses of PTSD were made, Black veterans were less likely than white veterans to receive a clinician’s diagnosis of PTSD during their disability exams. There was one set of cases where bias was not evident, however. In roughly 25 per cent of the evaluations, clinicians administered a formal PTSD symptom checklist or a psychological test to help them make a diagnosis – and if this additional information was collected, race bias was not observed. This is an important finding. Clinicians will sometimes form a first impression of a patient’s condition and then ask questions that can confirm – but not refute – their subjective impression. By obtaining good-quality objective information, clinicians might be less inclined to depend on their subjective impressions alone.

Race bias has also been found for other forms of mental illness. Historically, research indicated that Black patients and sometimes Hispanic patients were more likely than white patients to be given incorrect diagnoses of schizophrenia, while white patients were more often given correct diagnoses of major depression and bipolar disorder. During the past 20 years, this appears to have changed somewhat, with the most accurate diagnoses being made for Latino patients, the least accurate for Black patients, and the results for white patients somewhere in between.