Poor health literacy associated with poorer physical and mental health

CHICAGO Health problems that place limitations on daily activities and result in pain that interferes with normal work activities were more common among older individuals with poor health literacy, according to a study in the September 26 issue of Archives of Internal Medicine, one of the JAMA/Archives journals.

The Institute of Medicine reports that 48 percent of adults in the U.S. have inadequate health literacy, defined as the ability to obtain, process and understand basic information and services needed to make appropriate decisions regarding health, according to background information in the article. Besides basic reading skills, individuals need to be able to read and understand numerical information such as that on prescription bottles and be able to read and interpret document information such as appointment slips.

Michael S. Wolf, Ph.D., M.P.H. of the Feinberg School of Medicine, Northwestern University, Chicago, and colleagues used data from a survey of 2,923 Medicare enrollees in Cleveland, Houston, Tampa, and Fort Lauderdale-Miami, Fla. In a one-hour in-person interview, individuals' physical and mental health status were assessed. Questions included medical history, alcohol and tobacco use and height and weight. Standardized mental and physical health test scores were determined. The average age of participants was 71 years.

Approximately one third of those surveyed had marginal (11 percent) or inadequate (22.2 percent) health literacy. Individuals with lower health literacy were more likely to have never smoked and to abstain from alcohol than individuals with adequate health literacy, the researchers report. Individuals with inadequate health literacy had significantly higher rates of certain chronic conditions, including high blood pressure, diabetes mellitus, heart failure and arthritis. Individuals with inadequate health literacy were more likely to report activity limitations related to health, including activities

Contact: Liz Crown
JAMA and Archives Journals

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