The exposé discusses research on cell phones and brain tumors, concluding that:
- There is a risk of brain tumors from cell phone use
- Telecom funded studies underestimate the risk of brain tumors
- Children have larger risks than adults for brain tumors
The Interphone study, begun in 1999, was intended to determine the risks of brain tumors, but its full publication has been held up for years. Components of this study published to date reveal what the authors call a 'systemic-skew', greatly underestimating brain tumor risk.
The design flaws include categorizing subjects who used portable phones (which emit the same microwave radiation as cell phones,) as 'unexposed'; exclusion of many types of brain tumors; exclusion of people who had died, or were too ill to be interviewed as a consequence of their brain tumor; and exclusion of children and young adults, who are more vulnerable.