Study type: Epidemiological study (observational study)

Cellular telephone use and time trends for brain, head and neck tumours epidem.

Published in: N Z Med J 2003; 116 (1175): U457

Aim of study (acc. to author)

To investigate whether incidence rates of head and neck tumours in New Zealand have varied since the introduction of cellular telephones in 1987.

Endpoint/type of risk estimation

Type of risk estimation: (standardized incidence rate (SIR))

Exposure

Assessment

Population

Results (acc. to author)

The age-standardized incidence rates for head and neck tumours, separately analyzed by gender, have not changed materially since the introduction of cellular telephones in New Zealand.

Limitations (acc. to author)

Ecological studies like this one are limited in many ways.

Study funded by

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