The protocol for the study about association between radio frequency wave and children's health: The Hokkaido study on environment and children's health

It is needed to clarify the association between radio frequency (RF) wave exposure and child health, especially focused on neurodevelopment. We conduct questionnaire survey on mobile phone usage and children's behavior and health status for all children in the existing Hokkaido study cohort (n = 12,000, 7–17 year-old). Additionally, we implement three types of face to face survey for neurodevelopment (cognitive assessment, electroencephalogram recording, and intelligence test), along with personal radio frequency wave exposure measurements by portable devices, on children participating the existing Hokkaido birth cohort study (n = 400, respectively). All together, we examine the association between radio frequency wave exposure and children's health, controlling for potential confounding factors. In the presentation, we introduce the protocol of our project.