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.
Assessments of mobile-phone usage and hypertension were based on self-reported questionnaire data.
| 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 |
| Type | Value |
|---|---|
| Total | 21,781 |
| Evaluable | 21,135 |
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.
Hypertension was not assessed by measurement. No details of mobile phone usage (e.g., frequency and duration of calls) were available.
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