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According to a lot of people, doctors have awful handwriting. First, is this true - is there a statistically significant proportion of doctors who have handwriting which control groups would find hard to read? Secondly, this article claims that because it is so bad, it can kill patients due to mistakes involving drug dosages, or incorrect surgery, or by other means. Really?

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    I see probably 50+ separate doctors' handwriting a day. It ain't pretty. But it is mitigated a great deal by knowing two things: a) the type of Ancient Greek/Latin 'slang' they're likely to use; b) the limited number of conditions and drugs they're talking about. – user2466 Jun 18 '11 at 12:29
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    I've read somewhere that the bad handwriting is due to the very large number of notes that needs to be taken during the education. – Thorbjørn Ravn Andersen Jun 19 '11 at 21:01
  • @moioci cited a case of death by prescription error. In NZ some 20-30 years ago we had a similar case where a Pharmacist misread a prescription and the drugs given caused death. The Pharmacist was found to have been at fault ! :-(. It was argued AFAIR that thy should have queried an onbviously very unusual prescription. | It seems to me [tm] that writing abominably is ~~= "a badge of pride and membership of a secret society". Why it is tolerable that guessing games need to be played when very very clear instructions could easily be given is utterly illogical. ... – Russell McMahon Aug 24 '16 at 9:41
  • Do similar in eg any engineering discipline and you'd get it back for correction. At best. – Russell McMahon Aug 24 '16 at 9:41
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The source behind the Time article is a July 2006 report from the Institute of Medicine entitled Preventing Medication Errors: Quality Chasm Series. A brief (PDF) is available online and the information here is from that.

The topic revolves around adverse drug events (ADEs) which includes errors caused by faulty prescriptions:

Some of these “adverse drug events [ADEs],” as injuries due to medication are generally called, are inevitable—the more powerful a drug is, the more likely it is to have harmful side effects, for instance—but sometimes the harm is caused by an error in prescribing or taking the medication, and these damages are not inevitable. They can be prevented.

The number of preventable ADEs is extremely large. The report suggests that a typical hospital patient is subjected to at least one medication error a day. Different studies have claimed 380,000 and 450,000 preventable ADEs per year. The committee behind the report considers these low estimates.

One study calculates, for example, that 800,000 preventable ADEs occur each year in long-term care facilities. Another finds that among outpatient Medicare patients there occur 530,000 preventable ADEs each year.

It again considers those numbers low estimates and then notes that none of these studies involve prescriptions that should have happened but never did — errors of omission. The committee concludes with the number 1.5 million preventable ADEs occurring in the United States each year as their lowball estimate which one of the numbers used in the Time article. So far so good.

Unfortunately, the brief does not break down these numbers further. The only mention of handwriting is in a section about how using new technologies can help:

Even more promising is the use of electronic prescriptions, or e-prescriptions. By writing prescriptions electronically, doctors and other providers can avoid many of the mistakes that accompany handwritten prescriptions, as the software ensures that all the necessary information is filled out—and legible.

The note on legibility here is not hardly the focus of the section. While it does admit that poor handwriting plays a part in preventable ADEs, the brief alone does not provide enough reason for the Time article's comments that "Doctors' sloppy handwriting kills more than 7,000 people annually." Digging into the full report, I did find a few more notes on handwriting issues:

Poorly handwritten prescription orders are the chief culprit in miscommunications among prescribing clinicians, nurses, and pharmacists, and have often resulted in serious injury or death due to incorrect understanding of the drug or its dosage, route, or frequency (Cohen, 2000).

There was also a note about transcription errors which could be seen as a container for handwriting errors. One study labeled 29 of the 334 errors found as transcription errors. But nowhere in the report did I find an estimated death count for anything specifically targeting handwriting.

Looking closer at the Time article, I realized it may have just been tricky writing:

Doctors' sloppy handwriting kills more than 7,000 people annually. It's a shocking statistic, and, according to a July 2006 report from the National Academies of Science's Institute of Medicine (IOM), preventable medication mistakes also injure more than 1.5 million Americans annually.

The 1.5 million statistic does come from the IOM report but the 7,000 people killed is entirely unsourced. The Straight Dope comments:

The actual stat alluded to - apparently from a 1998 Lancet paper via subsequent reports by the Institute of Medicine - is that each year 7,000 U.S. deaths result from all medication-related errors of any sort, inside and outside hospitals, and not just those tied to poor penmanship.

The Time article was way off the mark with regards to their statistic and juxtaposing that statistic with an unrelated source. But the direct answer to the question, "Does bad handwriting kill people?" is that yes, it can, if it is the underlying cause for an ADE that results in patient death. Is it a rampant problem? Not when compared to the other preventable ADEs.

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    In other news, I suppose I should stop assuming that Time articles legitimately source their statements. This answer is a bit longer than it needed to be because I started from the IOM report. :P – MrHen Jun 18 '11 at 13:44
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    +1 It's long but very interesting. Even if the 7000 figure is high by a factor of 100, it answers the question in the affirmative. Another error source I've experienced, even with electronic prescriptions, is that admin staff can mess up prescriptions, because they handle the re-ordering, and often insurance and formulations change, and patients relocate from one pharmacy to another. Pharmacy staff and patients need to be really on guard. – Mike Dunlavey Jun 18 '11 at 14:48
  • @Mike: Yes, actually, that error source is also covered in the full report. Pretty much any step of the process can have errors, unfortunately. – MrHen Jun 18 '11 at 15:55
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Here's an example case: https://web.archive.org/web/20141127155506/http://www.medmal-law.com/illegibl.htm

On June 23, 1995, Ramon Vasquez received the following prescription from his cardiologist. He began taking the medication given to him by the pharmacist on a Saturday morning. By Sunday night, the medication had affected his heart so much that he had a heart attack. He died several days later.

Illegible prescription

[...]

What is the name of the first drug prescribed? Is it Plendil??? Isordil???

The pharmacist who filled this prescription read it as Plendil. The cardiologist who wrote the Rx states that he wrote Isordil.

[...]

This case marks the first time that a physician has been found negligent for illegible handwriting.

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