Medical/biological study (observational study)

Relating Use of Mobile Phones to Reported Sleep Quality med./bio.

By: Herr C, Nieden A, Lindenstruth M, Stilianakis N, Seitz H, Eikmann T

Published in: Somnologie (Somnology) 2005; 9 (4): 199-202

Aim of study (acc. to author)

To study possible relations between self-reported sleep quality and quantity, and the quality of the use of mobile phones.

Background/further details

Of 132 subjects, 101 reported using a mobile phone at the time of investigation.

Endpoint

sleep: sleep quality

Exposure

- mobile communications
- GSM
- not extractable

No exposure details are available.

Exposed system:

human
whole body

Methods Endpoint/measurement parameters/methodology

hypersensitivity/subjective complaints: somatization/unexplained somatic complaints (standardized questionnaires); subjective stress
sleep: self-reported sleep quality (e.g. sleep latency, duration, efficiency, disturbance; Pittsburgh Sleep Quality Index); environmental and occupational items, use of mobile phones (questionnaire-based physicians' interview); health-related quality of life

Investigated system:

investigation on living organism

Time of investigation:

after exposure

Main outcome of study (acc. to author)

Neither GSM frequency nor daily duration of mobile phone use was found to be associated with quality of sleep. Reduced quality of sleep was correlated with a higher number of unexplained somatic complaints as well as with subjective stress. Therefore, this aspect should be taken into account when evaluating quality of sleep in environmental studies.

Study character:

medical/biological study
observational study
full/main study

Study funded by

not stated/no funding

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