Study type: Epidemiological study (observational study)

Cell-Phone Use and Self-Reported Hypertension: National Health Interview Survey 2008. epidem.

Published in: Int J Hypertens 2011: 360415

Aim of study (acc. to author)

The aim of this study was to investigate the association between mobile-phone usage and occurrence of hypertension in a large, representative sample in the USA.

Further details

Assessments of mobile-phone usage and hypertension were based on self-reported questionnaire data.

Endpoint/type of risk estimation

Type of risk estimation: (odds ratio (OR))

Exposure

Assessment

Exposure groups

Group Description
Reference group 1 mobile-phone nonusers
Group 2 predominantly landline users
Group 3 dual users of mobile phone and landline
Group 4 predominantly mobile-phone users

Population

Study size

Type Value
Total 21,781
Evaluable 21,135
Statistical analysis method: ( adjustment: )

Conclusion (acc. to author)

43.5 % of the participants were mobile-phone nonusers and 13.8% were predominantly mobile-phone users.
The results of the comparison between mobile-phone user and mobile-phone nonusers showed that mobile-phone use was inversely associated with hypertension (OR 0.86; CI 0.75-0.98). These results were independent of age, sex, ethnicity, smoking, alcohol consumption, education, body mass index, and physical activity. This inverse association between mobile-phone use and hypertension was stronger in women, those aged < 60 years, whites, and those with BMI <25 kg/m².
The authors concluded that mobile-phone usage was protectively associated with self-reported hypertension in a nationally representative sample of adults in the USA.

Limitations (acc. to author)

Hypertension was not assessed by measurement. No details of mobile phone usage (e.g., frequency and duration of calls) were available.

Study funded by

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