Study type:
Epidemiological study
(observational study)
The pattern of mobile phone use and prevalence of self-reported symptoms in elementary and junior high school students in Shiraz, Iran
epidem.
By:
Mortazavi SM, Atefi M, Kholghi F
Published in: Iran J Med Sci 2011; 36 (2): 96-103
Aim of study (acc. to author)
Endpoint/type of risk estimation
Exposure
Assessment
Exposure groups
|
Group
|
Description
|
|
Group 1
|
cathode ray tube monitor use
|
|
Group 2
|
cordless phone use
|
|
Group 3
|
mobile phone use
|
|
Reference group 4
|
daily average mobile phone talking time: no use
|
|
Group 5
|
daily average mobile phone talking time: < 10 min
|
|
Group 6
|
daily average mobile phone talking time: > 11 min
|
Population
-
Group:
-
Age:
6–16 years
-
Characteristics:
elementary and junior high school students
-
Observation period:
not stated
-
Study location:
Iran (Shiraz)
Study size
| Type |
Value |
| Total |
469 |
| Evaluable |
452 |
Statistical analysis method:
Results (acc. to author)
Limitations (acc. to author)
The symptoms were self-reported by the students. Furthermore, given the age and knowledge of the study participants, their understandings about the exact definitions of the symptoms might have affected their answers to the questions asked.
Study funded by
-
Center for Research in Radiation Science (CRRS), Iran
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