No real change in DX error over 9 years
awu at JHU.EDU
Thu Dec 4 20:55:41 UTC 2014
Do we think it is valid to compare the responses from the 2005 to the current survey, and infer whether or not there was an “improvement”?
I’m concerned about denominators and response bias
Albert W. Wu, MD, MPH, FACP
Professor and Director
Center for Health Services & Outcomes Research
Johns Hopkins Bloomberg School of Public Health
624 N Broadway Room 653
Baltimore MD 21205
(410) 955-6567 / fax (410) 955-0470
Mobile (410) 978-1539
From: Jason Maude <Jason.Maude at ISABELHEALTHCARE.COM<mailto:Jason.Maude at ISABELHEALTHCARE.COM>>
Reply-To: Society to Improve Diagnosis in Medicine <IMPROVEDX at LIST.IMPROVEDIAGNOSIS.ORG<mailto:IMPROVEDX at LIST.IMPROVEDIAGNOSIS.ORG>>, Jason Maude <Jason.Maude at ISABELHEALTHCARE.COM<mailto:Jason.Maude at ISABELHEALTHCARE.COM>>
Date: Thursday, December 4, 2014 at 1:58 PM
To: "IMPROVEDX at LIST.IMPROVEDIAGNOSIS.ORG<mailto:IMPROVEDX at LIST.IMPROVEDIAGNOSIS.ORG>" <IMPROVEDX at LIST.IMPROVEDIAGNOSIS.ORG<mailto:IMPROVEDX at LIST.IMPROVEDIAGNOSIS.ORG>>
Subject: [IMPROVEDX] No real change in DX error over 9 years
No doubt you’ve seen the survey of medical error in MA carried out by the Betsey Lehman Center which was published a few days ago.
Sadly the results show very little change over the last 9 years!
Our founding charity carried out a similar survey on a national basis back in 2005 and the results were similar.
* Percentage of people who say they had experienced a medical mistake: In the 2005 Isabel Medical Charity survey it was 35% compared to 23% in the 2014 Betsy Lehman Center survey. This looks better but the 2005 question was whether 'you or someone you know' experienced a medical mistake whereas in 2014 the question was about being 'personally involved’ and also the Lehman question asked about ‘preventable’ mistakes rather than just a medical mistake. I am not sure how many patients would know whether it had been preventable or not. I would argue that the different wording would get a significantly smaller number.
* Percentage of those mistakes that were misdiagnosis: In 2005 the figure was 50% but has risen slightly to 51% in the Lehman survey.
This means that in 2005 17.5% of the adult population in the USA had directly experienced or knew somebody who had experienced a diagnostic error whereas in 2014 11.7% of the adult population in MA had personally experienced a preventable diagnostic error.
Not much to cheer about there!
Founder and CEO Isabel Healthcare
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