Epidemiological study (observational study)

Descriptive epidemiology of cerebral gliomas in northwest Greece and study of potential predisposing factors, 2005-2007 epidem.

By: Gousias K, Markou M, Voulgaris S, Goussia A, Voulgari P, Bai M, Polyzoidis K, Kyritsis A, Alamanos Y

Published in: Neuroepidemiology 2009; 33 (2): 89-95

Aim of study (acc. to author)

A case-control study was conducted in Greece to investigate potential predisposing factors of cerebral gliomas. Mobile phone use was one of the studied factors besides alcohol, tobacco, and severe head trauma.

Further details

Mobile phone use was estimated by multiplying the minutes spent talking per day by the number of years of use.

Endpoint/type of risk estimation

brain tumor: glioma

Type of risk estimation:

incidence

(odds ratio (OR))

Exposure

- also other exposures without EMF
- mobile communications
- mobile phone
- personal

Assessment

questionnaire: mobile phone use, time of start, intensity of use, hands-free use

Population

Group:
- men
- women
Observation period: June 2005 - May 2007
Study location: Greece (districts of Ioannina, Arta, Preveza, Thesprotia, Corfu, and Lefkada)

Case group

Characteristics: glioma
Data source: University Hospital Ioannina and other hospitals in the study region

Control group

Selection:
- hospital-based
Matching:
- sex
- age
- area
- case:control = 1:2

Study size

	Cases	Controls
Eligible	56	-
Participants	41	82

Statistical analysis method:

logistic regression

Results (acc. to author)

The age-adjusted incidence rate of glioma in Northwest Greece was 5.6 cases per 10,000 inhabitants which is higher compared with data of European, Asian and US populations.
No significant association between mobile phone use and the risk for glioma was observed (OR 1.00, 0.99-1.01).

Study funded by

not stated/no funding

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