Effects of indoor temperature and its fluctuation on blood pressure and its variability

IF 3 3区地球科学 Q2 BIOPHYSICS

International Journal of Biometeorology Pub Date : 2023-07-06 DOI:10.1007/s00484-023-02469-5

Ting Chen, Jian Ge, Xiaoyu Luo

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Abstract

Cardiovascular diseases (CVDs) are the number one health threat globally. Adverse indoor thermal environments are associated with excess mortality caused by CVDs in the cold season. While many studies have focused on the impact of indoor temperature on CVDs, none has considered the fluctuation of indoor temperature. To quantify the effect of indoor temperature on blood pressure and the effect of indoor temperature fluctuation on blood pressure variability (BPV), 172 middle-aged and elderly people in areas that experience both hot summers and cold winters in China completed a household survey regarding their characteristics and living habits. A hierarchical linear model (HLM) was used to analyze the impact of indoor temperature on home blood pressure. A multiple linear model was used to analyze the effect of indoor temperature fluctuation on day-to-day home blood pressure variability. The results showed that there was a significant negative correlation between morning temperature below 18 °C and blood pressure, especially systolic blood pressure (SBP). At the same time, morning temperature fluctuations have an independent influence on BPV, and a deviation of morning temperature fluctuation greater than 1.1 °C significantly increased BPV. Morning temperature and its fluctuation threshold for the rise of SBP and its variability of middle-aged and elderly people were clarified, which can provide a basis for the design, operation, and evaluation of residential thermal environmental health performance for the middle-aged and elderly population in this area, thereby reducing the cardiovascular health risk of the corresponding population.

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室内温度及其波动对血压及其变异性的影响

心血管疾病(cvd)是全球头号健康威胁。不利的室内热环境与寒冷季节心血管疾病造成的超额死亡率有关。虽然许多研究都集中在室内温度对心血管疾病的影响上，但没有一个研究考虑室内温度的波动。为了量化室内温度对血压的影响以及室内温度波动对血压变异性(BPV)的影响，172名中国夏热冬冷地区的中老年人完成了一项关于他们的特征和生活习惯的家庭调查。采用层次线性模型(HLM)分析室内温度对家庭血压的影响。采用多元线性模型分析室内温度波动对日常家庭血压变异性的影响。结果显示，早晨温度低于18℃与血压，尤其是收缩压(SBP)呈显著负相关。同时，清晨温度波动对BPV有独立的影响，当清晨温度波动偏差大于1.1℃时，BPV显著升高。明确中老年人清晨温度及其波动阈值对收缩压上升的影响，为该地区中老年人住宅热环境健康性能的设计、运行和评价提供依据，从而降低相应人群的心血管健康风险。

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来源期刊

International Journal of Biometeorology 地学-环境科学

CiteScore

6.40

自引率

9.40%

发文量

183

审稿时长

1 months

期刊介绍： The Journal publishes original research papers, review articles and short communications on studies examining the interactions between living organisms and factors of the natural and artificial atmospheric environment. Living organisms extend from single cell organisms, to plants and animals, including humans. The atmospheric environment includes climate and weather, electromagnetic radiation, and chemical and biological pollutants. The journal embraces basic and applied research and practical aspects such as living conditions, agriculture, forestry, and health. The journal is published for the International Society of Biometeorology, and most membership categories include a subscription to the Journal.