title: Evaluation of the impact of atmospheric pressure in different seasons on blood pressure in patients with arterial hypertension.
abstract: OBJECTIVE
  Atmospheric pressure is the most objective weather factor because regardless of if outdoors or indoors it affects all objects in the same way. The majority of previous studies have used the average daily values of atmospheric pressure in a bioclimatic analysis and have found no correlation with blood pressure changes. The main objective of our research was to assess the relationship between atmospheric pressure recorded with a frequency of 1 measurement per minute and the results of 24-h blood pressure monitoring in patients with treated hypertension in different seasons in the moderate climate of the City of Łódź (Poland).
  
  
  METHODS
  The study group consisted of 1662 patients, divided into 2 equal groups (due to a lower and higher average value of atmospheric pressure). Comparisons between blood pressure values in the 2 groups were performed using the Mann-Whitney U test.
  
  
  RESULTS
  We observed a significant difference in blood pressure recorded during the lower and higher range of atmospheric pressure: on the days of the spring months systolic (p = 0.043) and diastolic (p = 0.005) blood pressure, and at nights of the winter months systolic blood pressure (p = 0.013).
  
  
  CONCLUSIONS
  A significant inverse relationship between atmospheric pressure and blood pressure during the spring days and, only for systolic blood pressure, during winter nights was observed. Int J Occup Med Environ Health 2016;29(5):783-792.
authors: Lodz University of Technology, Łódź, Poland (Department of Microelectronics and Computer Science).
authors: Marek
authors: M
authors: Kamiński
authors: Medical University of Lodz, Łódź, Poland (Department of Cardiology). cieursz@wp.pl.
authors: Urszula I
authors: UI
authors: Cieślik-Guerra
authors: Lodz University of Technology, Łódź, Poland (Department of Microelectronics and Computer Science).
authors: Rafał
authors: R
authors: Kotas
authors: Lodz University of Technology, Łódź, Poland (Department of Microelectronics and Computer Science).
authors: Piotr
authors: P
authors: Mazur
authors: Lodz University of Technology, Łódź, Poland (Department of Microelectronics and Computer Science).
authors: Witold
authors: W
authors: Marańda
authors: Lodz University of Technology, Łódź, Poland (Department of Microelectronics and Computer Science).
authors: Maciej
authors: M
authors: Piotrowicz
authors: Lodz University of Technology, Łódź, Poland (Department of Microelectronics and Computer Science).
authors: Bartosz
authors: B
authors: Sakowicz
authors: Lodz University of Technology, Łódź, Poland (Department of Microelectronics and Computer Science).
authors: Andrzej
authors: A
authors: Napieralski
authors: Medical University of Lodz, Łódź, Poland (Department of Cardiology).
authors: Ewa
authors: E
authors: Trzos
authors: Medical University of Lodz, Łódź, Poland (Department of Cardiology).
authors: Barbara
authors: B
authors: Uznańska-Loch
authors: Medical University of Lodz, Łódź, Poland (Department of Cardiology).
authors: Tomasz
authors: T
authors: Rechciński
authors: Medical University of Lodz, Łódź, Poland (Department of Cardiology).
authors: Małgorzata
authors: M
authors: Kurpesa
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001274:Atmospheric Pressure; D001794:Blood Pressure; D018660:Blood Pressure Monitoring, Ambulatory; D002940:Circadian Rhythm; D005260:Female; D006801:Humans; D006973:Hypertension / Q000503:physiopathology*; D008297:Male; D008875:Middle Aged; D011044:Poland; D012621:Seasons
keywords: ABPM; ambulatory blood pressure monitoring; arterial hypertension; atmospheric pressure; impact of weather on health; weather