[The relationship of ankle brachial index to all-cause and cardiovascular disease mortality in Chinese male patients with hypertension].
OBJECTIVE
To evaluate the risk factors for peripheral arterial disease (PAD) and the relationship of low ankle brachial index (ABI) to all-cause and cardiovascular disease (CVD) mortality in Chinese male patients with hypertension.


METHODS
The data of 1606 male participants with hypertension from the eight hospitals in Beijing and Shanghai were analyzed. ABI was ascertained at baseline by measuring the systolic pressures on bilateral brachial and tibial arteries. ABI < or = 0.9 was used as the diagnostic criteria for PAD identification. The follow-up survey was conducted from November 2005 to January 2006.


RESULTS
Of 1606 male participants with hypertension at baseline, 406 (25.3% ) were in low-ABI group and 1200 (74.7%) were in normal-ABI group. Older age, TC, history of diabetes, history of smoking and 2-grade hypertension were associated with low ABI in male patients with hypertension. During the (12.87 +/- 2.94) months follow-up, there were 153 deaths. Of which, 62 were attributable to CVD. Low ABI was associated with adjusted all-cause and CVD mortality risk of 1.728 (1.223-2.441) and 2.388 (1.409-4.046) respectively in Cox regression models. Rate of survival for the low-ABI group was significantly worse than for the normal-ABI group. The risk of all-cause and CVD mortality was increased with the decline of ABI.


CONCLUSIONS
Low ABI is independently associated with the high risks of all-cause and CVD mortality in Chinese male patients with hypertension. The utility of ABI as a tool for predicting mortality in the patients with hypertension should be popularized.
Guo
Wei-Wei
WW
Center for Cardiovascular and Pulmonary Blood Vessel, Tongji University, Shanghai 200092, China
Li
Jue
J
Yu
Jin-Ming
JM
Luo
Ying-Yi
YY
Liu
Hao
H
Zheng
Li-Qiang
LQ
Buaijiaer
Hasimu
H
Li
Xian-Kai
XK
Hu
Da-Yi
DY
D055109:Ankle Brachial Index; D002318:Cardiovascular Diseases / Q000401:mortality*; D002681:China; D005500:Follow-Up Studies; D006801:Humans; D006973:Hypertension / Q000453:epidemiology* / Q000209:etiology; D008297:Male; D012307:Risk Factors