Prevalence of headache among handheld cellular telephone users in Singapore: a community study.
Published in: Environ Health Perspect 2000; 108 (11): 1059-1062
Aim of study (acc. to author)
Endpoint/type of risk estimation
CNS symptoms: headache, dizziness, difficulties in concentration, loss of memory, unusual drowsiness or tiredness, sense of warmth behind or around the ear, burning sensation to the ear and face, tingling sensation to the face, and visual disturbances Exposure
Reference group 1
no mobile phone use
mobile phone use
duration per day: < 2 min
duration per day: 2 - 60 min
duration per day: > 60 min
times per day: 0
times per day: < 5
times per day: 5 - 10
times per day: > 10
hand-free equipment used: never
hand-free equipment used: some of the time
hand-free equipment used: all of the time
781 individuals included in analysis
Statistical analysis method:
Cox proportional regressions analysis
Conclusion (acc. to author)
Limitations (acc. to author)
The participation rate was low and could
bias the findings.
Study funded by
Comments on this article
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