A cohort study on adult hematological malignancies and brain tumors in relation to magnetic fields from indoor transformer stations.

A cohort study on adult hematological malignancies and brain tumors in relation to magnetic fields from indoor transformer stations. Int J Hyg Environ Health. 2021 Feb 15;233:113712 Authors: Khan MW, Juutilainen J, Auvinen A, Naarala J, Pukkala E, Roivainen P Abstract Extremely low frequency (ELF) magnetic fields (MF) have been classified as possibly carcinogenic. This classification was mainly based on studies indicating increased risk of leukemia in children living near power lines. Increased risks of adult hematological malignancies and brain tumors have also been reported, but the results are mixed. We assessed incidence of adult hematological malignancies and brain tumors associated with residential MF exposure. All cohort members had lived in buildings with indoor transformer stations (TS). MF exposure was assessed based on apartment location. Out of the 256,372 individuals, 9,636 (165,000 person-years of follow-up) living in apartments next to TSs were considered as exposed. Associations between MF exposure and neoplasms were examined using Cox proportional hazard models. The hazard ratio (HR) for MF exposure ≥ 1 month was below one for most hematological neoplasms (HR for any hematological neoplasm: 0.75; 95% CI: 0.54-1.03), and decreased with increasing duration of exposure (HR for exposure ≥ 10 years: 0.47; 95% CI: 0.22-0.99). However, the HR for acute lymphocytic leukemia (ALL) was 2.86 (95% CI: 1.00-8.15), based o...
Source: International Journal of Hygiene and Environmental health - Category: Environmental Health Authors: Tags: Int J Hyg Environ Health Source Type: research