[Association between body mass index and ten-year-accumulative-risk of hypertension].
OBJECTIVE
To explore the association between body mass index (BMI) and ten-year accumulative risk of hypertension.


METHODS
A prospective study of relationship between blood pressure and other traditional risk factors was carried out in a cohort with 2115 people aged 35-64 years old involved, in 1992 and 2002. The association between baseline BMI level and a ten-year accumulative risk of hypertension was analyzed.


RESULTS
The ten-year accumulative incidence rate of hypertension was 34.8%, and increased with the elevated baseline BMI level in both genders (P < 0.001). Similar changing trends were observed in both age groups of 45-54 year and 55-64 year olds (P < 0.05). Multivariable OR (95% CI) of accumulative incident hypertension in the highest BMI tertile ( > or =28 kg/m2) was 3.569 higher (2.559 to 4.977) when compared to the lowest ( <24 kg/m2n). The ten-year accumulative risk of hypertension increased 17.5% with elevation of baseline BMI level by 1 kg/m2. The ten-year accumulative incidence rate of hypertension was 22.0% in the subjects with normal BMI and 56.3% in those with obesity, both in 1992 and 2002.


CONCLUSIONS
BMI appeared to be an independent risk factor for hypertension, and the risk of incident hypertension increased with elevated BMI level.
Department of Epidemiology, Beijing Anzhen Hospital Affiliated to the Capital University of Medical Science & Institute of Beijing Heart, Lung and Blood Vessel Diseases, Beijing 100029, China.
Dong
D
Zhao
Wei
W
Wang
Jing
J
Liu
Jun
J
Cheng
Jun
J
Liu
Lan-ping
LP
Qin
D000328:Adult; D015992:Body Mass Index; D002318:Cardiovascular Diseases / Q000453:epidemiology / Q000517:prevention & control*; D005260:Female; D006801:Humans; D006973:Hypertension / Q000503:physiopathology / Q000517:prevention & control*; D008297:Male; D008875:Middle Aged; D011446:Prospective Studies; D012307:Risk Factors