Case-Control Study on Occupational Exposure to Extremely Low-Frequency Electromagnetic Fields and the Association with Meningioma

Figure 1

Restricted cubic spline plot of the relationship between cumulative exposure to ELF-EMF in μT-years and meningioma in the 1–14-year latency group. The solid line shows the OR estimate and the broken lines represent the 95% CI. Adjustment for age at diagnosis, gender, SEI-code, and year of diagnosis was made.