Study type: Epidemiological study (observational study)

Cellular phones: are they detrimental? epidem.

Published in: J Egypt Public Health Assoc 2004; 79 (3-4): 197-223

Aim of study (acc. to author)

A cross-sectional study was conducted in Egypt to evaluate the prevalence of adverse health symptoms reported as possible side effect of mobile phone use.

Endpoint/type of risk estimation

Type of risk estimation:



Exposure groups

Group Description
Group 1 mobile phone use: no
Group 2 mobile phone use: yes


Study size

Type Value
Total 300
Evaluable 267
Statistical analysis method:

Conclusion (acc. to author)

193 out of 267 participants (72.3 %) used a mobile phone. 140 of the mobile phone users (72.5 %) reported adverse health symptoms. The main symptoms were headache (43 %), earache (38.3 %), sense of fatigue (31.6 %), sleep disturbance (29.5 %), concentration difficulty (28.5 %) and face burning sensation (19.2 %). The authors recommended to restrict the call duration to four minutes and to make less than seven calls/day with total duration of exposure less than 22 min/day.

Study funded by

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