depicts the prevalence of epilepsy by age in a scatter plot with a trend line. The graph is based on data from a composite of selected studies in developed the United States between 1978 and 2005. The y-axis measures prevalence per 1,000 in increments of two and the x-axis measures age in increments of 10 years. The trend line indicates that prevalence begins low and increases with age. The curve starts with a prevalence of less than 4 per 1,000 shortly after birth and increases during younger ages (0-20 years) to slightly more than 6 per 1,000 at 20 years of age. The prevalence remains roughly steady during the middle years of life (20-60 years) at about 7 per 1,000. At 60 years of age, the prevalence begins to increase gradually to just less than 7 per 1,000 at 70 years and continues to increase more sharply to about 11 per 1,000 between 80 and 90 years of age

FIGURE 1-1bPrevalence of epilepsy by age—composite of selected U.S. studies, 1978-2005

SOURCE: Thurman, 2011.

From: 1, Introduction

Cover of Epilepsy Across the Spectrum
Epilepsy Across the Spectrum: Promoting Health and Understanding.
Institute of Medicine (US) Committee on the Public Health Dimensions of the Epilepsies; England MJ, Liverman CT, Schultz AM, et al., editors.
Washington (DC): National Academies Press (US); 2012.
Copyright © 2012, National Academy of Sciences.

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