Study type: Epidemiological study (observational study)

Mobile phone related-hazards and subjective hearing and vision symptoms in the Saudi population. epidem.

Published in: Int J Occup Med Environ Health 2005; 18 (1): 53-57

Aim of study (acc. to author)

The association of mobile phone use and hearing and vision symptoms in the Saudi population was investigated.

Further details

Volunteers were asked to answer a questionnaire about the medical history and mobile phone use.

Endpoint/type of risk estimation

Type of risk estimation:



Exposure groups

Group Description
Group 1 duration of calls: < 5 min/day
Group 2 duration of calls: 5-10 min/day
Group 3 duration of calls: 11-20 min/day
Group 4 duration of calls: 21-30 min/day
Group 5 duration of calls: > 30 min/day


Study size

Type Value
Total 873
Participants 843
Participation rate 97 %
Statistical analysis method:

Conclusion (acc. to author)

The results showed a relationship between mobile phone use and hearing complaints (34,6%) as well vision complaints (5%). Differences between duration of calls and complaints were not statistically significant.

Study funded by

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