Epidemiology of Electromagnetic Fields

220 Epidemiology of Electromagnetic Fields

phone and risk of meningioma. Only six cases reported ≥5 years of use, however; hence,

the study has little power to detect a possible association.

The INTERPHONE analyses included 2409 meningioma cases and their matched con-

trols. As with glioma, a reduced OR related to ever having been a regular mobile phone user

was seen for meningioma (0.79 [0.68–0.91]). No elevated OR was observed ≥10 years after rst

phone use (meningioma: 0.83; [0.61–1.14]); furthermore, ORs were below 1.0 for all deciles of

lifetime number of phone calls and nine deciles of cumulative call time, possibly reect-

ing participation bias or other methodological limitation. There was no trend of increas-

ing ORs with increasing c ...