cellphone and cancer 3

3. How is radiofrequency energy exposure measured in epidemiologic studies?

Levels of radiofrequency exposure are indirectly estimated using information from interviews or questionnaires. These measures include the following:

  • How “regularly” study participants use cell phones (the minimum number of calls per week or month)
  • The age and the year when study participants first used a cell phone and the age and the year of last use (allows calculation of the duration of use and time since the start of use)
  • The average number of cell phone calls per day, week, or month (frequency)
  • The average length of a typical cell phone call
  • The total hours of lifetime use, calculated from the length of typical call times, the frequency of use, and the duration of use
Advertisements

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s