title: Coexistence of PM2.5 and low temperature is associated with morning hypertension in hypertensives.
abstract: We tested the hypothesis that concentration of PM2.5 is associated with home BP level. We analyzed home BP data for 91 consecutive days in 40 hypertensives. PM2.5 solely was not correlated with home BP levels, but low temperature was associated with a 1.6-fold increased likelihood of morning hypertension (p < 0.001) under the condition of high PM2.5 concentration. In addition, coexistence of low temperature and high PM2.5 was associated with a 2.3-fold increased likelihood of morning hypertension (p < 0.001) compared with high temperature and low PM2.5 condition. Environmental and meteorological factors could be important causes of enhanced home BP elevation.
authors: a Division of Cardiovascular Medicine, Department of Medicine , Jichi Medical University , Tochigi , Japan.
authors: Yuki
authors: Y
authors: Imaizumi
authors: a Division of Cardiovascular Medicine, Department of Medicine , Jichi Medical University , Tochigi , Japan.
authors: Kazuo
authors: K
authors: Eguchi
authors: a Division of Cardiovascular Medicine, Department of Medicine , Jichi Medical University , Tochigi , Japan.
authors: Kazuomi
authors: K
authors: Kario
mesh_terms: D000368:Aged; D000393:Air Pollutants / Q000009:adverse effects*; D003080:Cold Temperature / Q000009:adverse effects*; D003430:Cross-Sectional Studies; D005260:Female; D006801:Humans; D006973:Hypertension / Q000453:epidemiology / Q000209:etiology* / Q000503:physiopathology; D015994:Incidence; D007564:Japan / Q000453:epidemiology; D008297:Male; D008685:Meteorological Concepts; D052638:Particulate Matter / Q000009:adverse effects*; D013997:Time Factors
chemical_list: D000393:Air Pollutants; D052638:Particulate Matter
keywords: Air pollution; fine particulate matter with a diameter <2.5 µm; home BP; morning hypertension; temperature