Study of characteristics and related factors of blood pressure variability in the elderly in urban area of Beijing
Yang Liqing
Wu Shengping
Ru Xiaojuan
Jiang Bin
Wang Wenzhi
Zhang Hui
Liu Hongmei
Abstract：Objective To investigate the characteristics and related factors of long-term blood pressure variability in the elderly in urban area of Beijing.Methods A survey was conducted among a non-stroke population over 60 years old from Dongcheng district (former Chongwen district) and Shijingshan district of Beijing,using stratified cluster random sampling method; physical examination and blood pressure monitoring were taken in each follow-up.Multiple linear regressions were used to analyze the characteristics and related factors of long-term blood pressure variability in the elderly.Results Blood pressure variability in hypertensive patients was significantly higher than that in non-hypertensive patients [systolic blood pressure variability was (13.8 ± 2.1) mmHg vs (12.0 ±2.1) mmHg,t =-13.89,P ＜0.01 ; diastolic blood pressure variability was (9.3 ± 1.7) mmHg vs (8.6 ± 1.8) mmHg,t =-8.45,P ＜ 0.01].In the groups of systolic blood pressure ＜ 120 mmHg,120-139 mmHg,140-159 mmHg,160-179 mmHg,≥ 180 mmHg,systolic blood pressure variability was (10.8 ± 2.4),(12.4 ± 1.9),(13.6 ± 2.4),(16.1 ± 2.4),(23.9 ± 4.5) mmHg respectively for males,and it was (11.6 ± 2.4),(12.7 ± 2.0),(14.2 ± 2.4),(17.5 ± 2.6),(26.2 ± 1.8) mmHg respectively for females.In the groups of diastolic blood pressure ＜ 80 mmHg,80-89 mmHg,90-99 mmHg,100-109 mmHg,≥ 110 mmHg,diastolic blood pressure variability was (8.4 ± 1.9),(8.7 ± 1.7),(9.6 ± 1.5),(10.2 ± 1.3),(13.5 ± 5.0) mmHg respectively for males,and it was (8.8 ± 1.7),(8.9 ± 1.6),(9.6 ± 1.3),(10.7 ± 1.0),(15.6 ± 0.8) mmHg respectively for females.In the groups of age 60-64,65-69,≥70,systolic blood pressure variability was (11.9 ±2.7),(12.1 ± 2.1),(13.2 ± 2.7) mmHg respectively for males ; diastolic blood pressure variability was (8.5 ± 1.8),(8.6 ± 1.8) and (9.1 ± 1.9)mmHg respectively for males.In the groups of age 60-64,65-69,≥70,systolic blood pressure variability was(12.3 ± 2.7),(12.8 ± 2.1),(13.4 ± 2.6) mmHg respectively for females,diastolic blood pressure variability was (8.7 ± 1.6),(8.9 ± 1.6),(9.3 ± 1.8) mmHg respectively for females.Blood pressure variability in the elderly increased with age (P ＜0.01) ; in the group of age 65-69,blood pressure variability in females was higher than that in males(P ＜0.05).At the same time,blood pressure variability increased with the increasing mean blood pressure for both sexes; in the groups of systolic blood pressure ＜ 120 mmHg,120-139 mmHg and diastolic blood pressure ＜ 80 mmHg,blood pressure variability in females was higher than that in males (P ＜ 0.05).Multiple linear regression analysis showed that increasing systolic blood pressure,age,women,increasing body mass index and hyperlipidemia were risk factors of systolic blood pressure variability ; increasing diastolic blood pressure,age and increasing body mass index were risk factors of diastolic blood pressure variability,while light alcohol consumption might be a protective factor.Conclusions Mean blood pressure,age,gender,body mass index,hyperlipidemia and alcohol are main factors affecting long-term blood pressure variability in the elderly.Controlling blood pressure is the most effective measures to reduce blood pressure variability in the elderly.
Keywords：Blood pressure variabilityThe elderlyRelated factors
Publication Date：2014-05-30
Online Publishing Date：2026-09-14(First online date of this platform, not the publication date of the document)
Pages：5( 619-623 )