Study type: Epidemiological study (observational study)

Risk of neurological diseases among survivors of electric shocks: A nationwide cohort study, Denmark, 1968-2008 epidem.

Published in: Bioelectromagnetics 2012; 33 (6): 459-465

Aim of study (acc. to author)

A retrospective cohort study was conducted in Denmark to investigate the risk of neurological diseases among people who had survived an electric accident in 1968-2008.

Endpoint/type of risk estimation



Exposure groups

Group Description
Group 1 low-voltage accidents (< 1000 V)
Group 2 high voltage accidents (≥ 1000 V)


Study size

Type Value
Participants 3,133

62,982 person-years

Results (acc. to author)

Statistically significantly increased risks were observed for peripheral nerve diseases (SHR 1.66; CI 1.22-2.22), for migraine (SHR 1.80; CI 1.23-2.54), for vertigo (SHR 1.60; CI 1.22-2.05), and for epilepsy (SHR 1.45; CI, 1.11-1.85) among survivors of electric shocks. Only small numbers of cases of other neurological diseases were found, making the risk estimates unstable.
The authors conclude that the findings suggest an association between a single electric shock and increased risks for peripheral nerve diseases, migraine, vertigo, and epilepsy, but confirmation of these observations is needed.

Study funded by

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