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.
|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|
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.