A study led by a researcher at the San Francisco VA Medical Center examined the link between literacy level and risk of mortality, reported that //during cases when literacy is less than ninth-grade the risk of mortality is almost double amongst the senior lot, irrespective of their education, socio-economic status or health.
Lead author Rebecca Sudore, MD, a staff physician at SFVAMC and an assistant professor of medicine at the University of California, San Francisco said, “From a public health standpoint, this has important implications. Poor literacy appears to have long-lasting effects on patients' health. This is yet just one more reason why improving the educational system in the US is so important."
The study appears in the August 2006 issue of the Journal of General Internal Medicine, a special issue devoted to the topic of health literacy.
In another study led by Sudore that appears in the same issue, findings showed that only 28 percent of adults understood a highly simplified medical consent form the first time they encountered it, even after extensive modification of the consent process in order to improve understanding. The form, written at a sixth-grade reading level, was read aloud to subjects in English or Spanish as they read it for themselves.
"We cannot make the assumption that anyone, even highly literate native English-speakers, will understand medical consent information," asserts Sudore.
The literacy and mortality study analyzed data on 2,512 participants in the Health, Aging, and Body Composition Study that was conducted by the National Institute on Aging from 1999 to 2004. Study subjects, aged 70 to 79, lived independently in the community in Memphis, Tennessee or Pittsburgh, Pennsylvania. The study excluded participants with dementia or poor physical functioning.
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