Featured Research

from universities, journals, and other organizations

Study Shows No Connection Between Cell Phone Usage And Brain Cancer

Date:
December 20, 2000
Source:
Memorial Sloan-Kettering Cancer Center
Summary:
With more than 86 million American cellular phone users reported in 1999 and the number still increasing, there has been growing concern about the risk of developing brain cancer from radiofrequency signals given off by handheld cellular phones. A case-control study of 891 people who regularly used a cellular phone showed no statistical association between the amount of cell phone usage and the likelihood of developing brain cancer.

NEW YORK, December 20, 2000 -- With more than 86 million American cellular phone users reported in 1999 and the number still increasing, there has been growing concern about the risk of developing brain cancer from radiofrequency signals given off by handheld cellular phones. A case-control study of 891 people who regularly used a cellular phone showed no statistical association between the amount of cell phone usage and the likelihood of developing brain cancer. Researchers from the American Health Foundation and Memorial Sloan-Kettering Cancer Center and four United States medical centers reported their findings in the December 20 issue of the Journal of the American Medical Association.

"The recent phenomenon of widespread use of cellular phones had been a suspected risk factor for the development of brain cancer and needed to be clarified by a study," explained Joshua Muscat, MPH, of the Division of Epidemiology of the American Health Foundation and the study's first author. "The data showed no correlation between the use of cell phones and the development of brain cancer. In addition, there was no association between the amount of cell phone usage and brain cancer."

In a retrospective, case-control study, 469 men and women diagnosed with primary brain cancer and 422 people without brain cancer were interviewed between 1994 and 1998 using a structured questionnaire. They were asked which type of cell phone (manufacturer) they used, the usage per month in minutes and hours, the year of first use, and the number of years of usage. In addition, an estimated monthly phone bill was ascertained. The patients, aged 18 to 80, were scrupulously matched to the control group by age, sex, race, years of education, and occupation.

The usage reported for cancer patients and the control group was not statistically significant. The median monthly use was 2.5 hours for cases with cancer and 2.2 hours for the control. The mean duration of use was 2.8 years for brain cancer patients and 2.7 years for the controls.

"Because 85 percent of people in the study reported extending the antenna during calls, we might have expected to find a disproportionate cluster of tumors behind the eye and the ear on the side the cell phone was used since radiation emission is highest at the antenna," said Mark Malkin, MD, a neuro-oncologist at Memorial Sloan-Kettering Cancer Center and study co-author. "In fact we found no link between cell phone usage and temporal lobe tumors, nor was there any association between handedness and tumor location."

The study was conducted through interviews of patients at Memorial Sloan-Kettering Cancer Center, New York University Medical Center, Columbia Presbyterian Hospital, Rhode Island Hospital and Massachusetts General Hospital. Muscat and the late Ernst L. Wynder, MD designed the study and conducted the statistical analysis under the auspices of the American Health Foundation.

Based on all available data including studies by other groups, the researchers believe that extended use of cellular phones does not appear to cause brain cancer. However, further research is indicated as this study covers people who have mostly used analog cellular phones for a relatively short period of time (two to three years). As people continue to use cell phones for extended durations, the long-term health effects, if any, need to be monitored.

This project was supported by a contract from Wireless Technology Research LLC and Public Service Health grants from National Cancer Institute.


Story Source:

The above story is based on materials provided by Memorial Sloan-Kettering Cancer Center. Note: Materials may be edited for content and length.


Cite This Page:

Memorial Sloan-Kettering Cancer Center. "Study Shows No Connection Between Cell Phone Usage And Brain Cancer." ScienceDaily. ScienceDaily, 20 December 2000. <www.sciencedaily.com/releases/2000/12/001220081206.htm>.
Memorial Sloan-Kettering Cancer Center. (2000, December 20). Study Shows No Connection Between Cell Phone Usage And Brain Cancer. ScienceDaily. Retrieved September 3, 2014 from www.sciencedaily.com/releases/2000/12/001220081206.htm
Memorial Sloan-Kettering Cancer Center. "Study Shows No Connection Between Cell Phone Usage And Brain Cancer." ScienceDaily. www.sciencedaily.com/releases/2000/12/001220081206.htm (accessed September 3, 2014).

Share This



More Health & Medicine News

Wednesday, September 3, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Snack Attack: Study Says Action Movies Make You Snack More

Snack Attack: Study Says Action Movies Make You Snack More

Newsy (Sep. 2, 2014) You're more likely to gain weight while watching action flicks than you are watching other types of programming, says a new study published in JAMA. Video provided by Newsy
Powered by NewsLook.com
U.N. Says Ebola Travel Restrictions Will Cause Food Shortage

U.N. Says Ebola Travel Restrictions Will Cause Food Shortage

Newsy (Sep. 2, 2014) The U.N. says the problem is two-fold — quarantine zones and travel restrictions are limiting the movement of both people and food. Video provided by Newsy
Powered by NewsLook.com
Doctors Fear They're Losing Battle Against Ebola

Doctors Fear They're Losing Battle Against Ebola

AP (Sep. 2, 2014) As a third American missionary is confirmed to have contracted Ebola in Liberia, doctors on the ground in West Africa fear they're losing the battle against the outbreak. (Sept. 2) Video provided by AP
Powered by NewsLook.com
Tech Giants Bet on 3D Headsets for Gaming, Healthcare

Tech Giants Bet on 3D Headsets for Gaming, Healthcare

AFP (Sep. 2, 2014) When Facebook acquired the virtual reality hardware developer Oculus VR in March for $2 billion, CEO Mark Zuckerberg hailed the firm's technology as "a new communication platform." Duration: 02:24 Video provided by AFP
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins