248 Epidemiology of Electromagnetic Fields
periods between rst exposure and diagnoses of brain tumors in those studies were very
short (see Chapter13).
Interphone was a large multinational case–control study of brain tumors coordinated
by IARC (Cardis etal. 2007; see Chapter13). No association was observed for meningioma
(INTERPHONE Study Group 2010). For glioma, the OR for being a regular user of a mobile
phone was 0.8 (95% CI, 0.7–0.9) (INTERPHONE Study Group 2010). Relative risks did not
vary between the categories of duration of use, that is, mobile phone users for ≥10 years of
use had no different risk from users for a shorter duration. Analyses by number of calls
did not show any increased risks either. The analyses by lifetime cumulative ...