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|Title:||Prevalence of headache among handheld cellular telephone users in Singapore: A community study|
|Authors:||Chia, S.-E. |
|Source:||Chia, S.-E.,Chia, H.-P.,Tan, J.-S. (2000). Prevalence of headache among handheld cellular telephone users in Singapore: A community study. Environmental Health Perspectives 108 (11) : 1059-1062. ScholarBank@NUS Repository.|
|Abstract:||We carried out a cross-sectional community study in Singapore to determine the prevalence of specific central nervous system (CNS) symptoms among handheld cellular telephone (HP) users compared to nonusers and to study the association of risk factors and CNS symptoms among HP users. A total of 808 men and women between 12 and 70 years of age, who lived in one community, were selected using one-stage cluster random sampling and responses to a structured questionnaire. The prevalence of HP users was 44.8%. Headache was the most prevalent symptom among HP users compared to non-HP users, with an adjusted prevalence rate ratio of 1.31 [95% confidence interval, 1.00-1.70]. There is a significant increase in the prevalence of headache with increasing duration of usage (in minutes per day). Prevalence of headache was reduced by more than 20% among those who used hand-free equipment for their cellular telephones as compared to those who never use the equipment. The use of HPs is not associated with a significant increase of CNS symptoms other than headache.|
|Source Title:||Environmental Health Perspectives|
|Appears in Collections:||Staff Publications|
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