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Faculty of MedicineSchool of Public Health

Chair in Epidemiology and Public Health Medicine



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BibTex format

author = {Tettamanti, G and Auvinen, A and Åkerstedt, T and Kojo, K and Ahlbom, A and Heinävaara, S and Elliott, P and Schüz, J and Deltour, I and Kromhout, H and Toledano, MB and Poulsen, AH and Johansen, C and Vermeulen, R and Feychting, M and Hillert, L and COSMOS, Study Group},
doi = {10.1016/j.envint.2020.105687},
journal = {Environment International},
pages = {1--9},
title = {Long-term effect of mobile phone use on sleep quality: results from the cohort study of mobile phone use and health (COSMOS)},
url = {},
volume = {140},
year = {2020}

RIS format (EndNote, RefMan)

AB - BACKGROUND: Effects of radiofrequency electromagnetic field exposure (RF-EMF) from mobile phone use on sleep quality has mainly been investigated in cross-sectional studies. The few previous prospective cohort studies found no or inconsistent associations, but had limited statistical power and short follow-up. In this large prospective cohort study, our aim was to estimate the effect of RF-EMF from mobile phone use on different sleep outcomes. MATERIALS AND METHODS: The study included Swedish (n = 21,049) and Finnish (n = 3120) participants enrolled in the Cohort Study of Mobile Phone Use and Health (COSMOS) with information about operator-recorded mobile phone use at baseline and sleep outcomes both at baseline and at the 4-year follow-up. Sleep disturbance, sleep adequacy, daytime somnolence, sleep latency, and insomnia were assessed using the Medical Outcome Study (MOS) sleep questionnaire. RESULTS: Operator-recorded mobile phone use at baseline was not associated with most of the sleep outcomes. For insomnia, an odds ratio (OR) of 1.24, 95% CI 1.03-1.51 was observed in the highest decile of mobile phone call-time (>258 min/week). With weights assigned to call-time to account for the lower RF-EMF exposure from Universal Mobile Telecommunications Service (UMTS, 3G) than from Global System for Mobile Communications (GSM, 2G) the OR was 1.09 (95% CI 0.89-1.33) in the highest call-time decile. CONCLUSION: Insomnia was slightly more common among mobile phone users in the highest call-time category, but adjustment for the considerably lower RF-EMF exposure from the UMTS than the GSM network suggests that this association is likely due to other factors associated with mobile phone use than RF-EMF. No association was observed for other sleep outcomes. In conclusion, findings from this study do not support the hypothesis that RF-EMF from mobile phone use has long-term effects on sleep quality.
AU - Tettamanti,G
AU - Auvinen,A
AU - Åkerstedt,T
AU - Kojo,K
AU - Ahlbom,A
AU - Heinävaara,S
AU - Elliott,P
AU - Schüz,J
AU - Deltour,I
AU - Kromhout,H
AU - Toledano,MB
AU - Poulsen,AH
AU - Johansen,C
AU - Vermeulen,R
AU - Feychting,M
AU - Hillert,L
AU - COSMOS,Study Group
DO - 10.1016/j.envint.2020.105687
EP - 9
PY - 2020///
SN - 0160-4120
SP - 1
TI - Long-term effect of mobile phone use on sleep quality: results from the cohort study of mobile phone use and health (COSMOS)
T2 - Environment International
UR -
UR -
UR -
UR -
VL - 140
ER -