Despite warnings from the World Health Organization that cell phone use could be associated with some risk for brain cancer, 73% of U.S. voters say they will not alter their cell phone usage.

These results are from an IBOPE Zogby interactive poll conducted from June 7-9. On May 31, a panel organized by the World Health Organization reported that cell phones are "possibly carcinogenic" to humans.

The IBOPE Zogby interactive poll of 2,061 likely voters has a margin of error of +/-2.2%.

A sampling of IBOPE Zogby International's online panel, which is representative of the adult population of the U.S., was invited to participate. Slight weights were added to region, party, age, race, religion, gender, and education to more accurately reflect the population.

Zogby International IBOPE Zogby International is a non-partisan, premier global public opinion polling and market research firm that offers timely, accurate results and in-depth analysis and insights. Please visit for more information.

IBOPE Group is a Brazilian multinational company specializing in media, market and opinion research with offices in the United States and 14 Latin American countries. For more information visit