The relationship between home blood pressure measurement and room temperature in a Japanese general population

• Published in: Hypertension research 2021-04, Vol.44 (4), p.454-463
• Main Authors: Kubozono, Takuro, Akasaki, Yuichi, Kawasoe, Shin, Ojima, Satoko, Kawabata, Takeko, Makizako, Hyuma, Kuwahata, So, Takenaka, Toshihiro, Maeda, Mayuka, Ohno, Mayu, Kijimuta, Mika, Fujiwara, Seisuke, Miyagawa, Ken, Ohishi, Mitsuru
• Format: Article
• Language: English
• Subjects: Blood pressure; Blood Pressure - physiology; Blood Pressure Monitoring, Ambulatory; Humans; Hypertension; Japan; Pressure measurement; Temperature
• ISSN: 0916-9636; 1348-4214
• DOI: 10.1038/s41440-020-00564-3

Blood pressure (BP) is influenced by various factors, and it is known that temperature and BP have a negative relationship. However, few reports have examined the relationship between BP and temperature throughout the day in the same participant over time. Therefore, this study aimed to investigate the relationship between BP and temperature in the morning and evening in the same participants during a time period of ~1 year. In total, 401 participants, who participated in a community-based health checkup survey in Tarumizu, Japan, were enrolled. Five participants were excluded due to missing data. All participants measured their BP and the room temperature at home using a blood pressure monitor (HEM-9700T, OMRON Healthcare, Kyoto, Japan). The mean systolic BP (SBP) and diastolic BP (DBP) in the morning were significantly higher than the mean of the measurements taken in the evening (SBP: morning vs. evening 128 ± 15 mmHg vs. 122 ± 14 mmHg, P