Circulation Journal
Online ISSN : 1347-4820
Print ISSN : 1346-9843
ISSN-L : 1346-9843
Epidemiology
Morning and Evening Blood Pressures Are Associated With Intima-Media Thickness in a General Population ― The Hisayama Study ―
Satoko SakataJun HataMasayo FukuharaKoji YonemotoNaoko MukaiDaigo YoshidaHiro KishimotoToshio OhtsuboTakanari KitazonoYutaka KiyoharaToshiharu Ninomiya
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Supplementary material

2017 Volume 81 Issue 11 Pages 1647-1653

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Abstract

Background:The association of morning and evening home blood pressures (HBPs) with carotid atherosclerosis has been uncertain in general populations, so we aimed to investigate it in a general Japanese population.

Methods and Results:We performed a cross-sectional survey of 2,856 community-dwelling individuals aged ≥40 years to examine the association of morning and evening HBPs with carotid mean intima-media thickness (IMT). The age- and sex-adjusted geometric averages of carotid mean IMT increased significantly with increasing morning HBP (optimal: 0.67 mm; normal: 0.69 mm; high normal: 0.72 mm; grade 1 hypertension: 0.74 mm; and grade 2+3 hypertension: 0.76 mm) and with increasing evening HBP (0.68 mm, 0.71 mm, 0.73 mm, 0.76 mm, and 0.78 mm, respectively) (both P for trend <0.001). These associations remained significant even after adjusting for potential confounding factors. Likewise, both isolated morning hypertension (morning HBP ≥135/85 mmHg and evening HBP <135/85 mmHg) and isolated evening hypertension (evening HBP ≥135/85 mmHg and morning HBP <135/85 mmHg) as well as sustained hypertension (both morning and evening HBP ≥135/85 mmHg) were significantly associated with thicker mean IMT.

Conclusions:Our findings suggested that both morning and evening HBPs were significantly associated with carotid atherosclerosis in this general Japanese population.

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© 2017 THE JAPANESE CIRCULATION SOCIETY
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