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Tuesday 9 February 2010
The medical malpractice myth

The best attempt to synthesize the academic literature on medical malpractice is Tom Baker’s The Medical Malpractice Myth, published last November. Baker, a law professor at the University of Connecticut who studies insurance, argues that the hype about medical malpractice suits is “urban legend mixed with the occasional true story, supported by selective references to academic studies.” After all, including legal fees, insurance costs, and payouts, the cost of the suits comes to less than one-half of 1 percent of health-care spending. If anything, there are fewer lawsuits than would be expected, and far more injuries than we usually imagine.

As proof, Baker marshals an overwhelming array of research. The most impressive and comprehensive study is by the Harvard Medical Practice released in 1990. The Harvard researchers took a huge sample of 31,000 medical records, dating from the mid-1980s, and had them evaluated by practicing doctors and nurses, the professionals most likely to be sympathetic to the demands of the doctor’s office and operating room. The records went through multiple rounds of evaluation, and a finding of negligence was made only if two doctors, working independently, separately reached that conclusion. Even with this conservative methodology, the study found that doctors were injuring one out of every 25 patients—and that only 4 percent of these injured patients sued.

The Harvard study stands for a large body of literature. On their own, however, the results don’t disprove the Republicans’ thesis that many medical malpractice suits are frivolous. Maybe badly injured patients don’t sue, while the reflexively litigious clog up the legal system, making tort reform a viable solution. But a new study, released in May, demolishes that possibility. Dr. David Studdert led a team of eight researchers from Harvard School of Public Health, Brigham and Women’s Hospital, and the Harvard Risk Management Foundation who examined 1,452 medical malpractice lawsuits. They found that more than 90 percent of the claims showed evidence of medical injury, which means they weren’t frivolous. In 60 percent of these cases, the injury resulted from physician wrongdoing. In a quarter of the claims, the patient died.

When baseless medical malpractice suits were brought, the study further found, the courts efficiently threw them out. Only six of the cases in which the researchers couldn’t detect injury received even token compensation. Of those in which an injury resulted from treatment, but evidence of error was uncertain, 145 out of 515 received compensation. Indeed, a bigger problem was that 236 cases were thrown out of court despite evidence of injury and error to patients by physicians. The other approximately 1,050 cases, in the research team’s opinion, were decided correctly, with damage awards going to the injured and dismissal foiling the frivolous suits.

Nor is there evidence to show that the level of jury awards has shot up. A recent RAND study looked at the growth in malpractice awards between 1960 and 1999. “Our results are striking,” the research team concluded. “Not only do we show that real average awards have grown by less than real income over the 40 years in our sample, we also find that essentially all of this growth can be explained by changes in observable case characteristics and claimed economic losses.”

Notes

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