Institute of Epidemiology and Statistics, School of Public Health, Lanzhou University, Lanzhou, 73000, China.
Jinchang Center for Disease Prevention and Control, Jinchang, 737100, China.
J Hum Hypertens. 2023 Sep;37(9):818-827. doi: 10.1038/s41371-022-00768-9. Epub 2022 Oct 18.
Blood pressure has been shown to change by outdoor temperature, but whether intra- and inter-day temperature variability (TV) will bring higher effect on BP is not clear. Based on a prospective cohort study, the mixed effect model was selected to estimate the relationship between TV (daily temperature variability (DTV) and hourly temperature variability (HTV)) and BP (systolic blood pressure (SBP), diastolic blood pressure (DBP), pulse pressure (PP), and mean arterial pressure (MAP)) after adjusting for confounding variables. We found that there was a positive linear correlation between TV and BP. The results of DTV and HTV were basically consistent, but the effect estimates of HTV seemed to be larger. Gender, age, BMI, education level and BP status may modify the relationship between TV and BP. The effect of TV on BP was greater in non-heating season than in heating season. Our work contributes to a further macro mechanism evidence for the TV-CVDs association.
血压已被证明会随室外温度而变化，但日内和日间温度变化（TV）是否会对血压产生更高的影响尚不清楚。本研究基于前瞻性队列研究，采用混合效应模型来估计 TV（日温度变化（DTV）和小时温度变化（HTV））与 BP（收缩压（SBP）、舒张压（DBP）、脉压（PP）和平均动脉压（MAP））之间的关系，调整混杂变量后。我们发现 TV 与 BP 呈正线性相关。DTV 和 HTV 的结果基本一致，但 HTV 的效应估计似乎更大。性别、年龄、BMI、教育水平和 BP 状况可能会改变 TV 与 BP 之间的关系。TV 对 BP 的影响在非采暖季节大于采暖季节。我们的工作为 TV-CVDs 相关性的进一步宏观机制证据做出了贡献。
