Zhang Zheng-ji, Zhang Qiu-li, Hu Yi-he, DU Huai-dong, Lewington Sarah, Guo Yu, Sherliker Paul, Bian Zheng, Chen Zheng-ming, Li Li-ming
Suzhou Center of Disease Control and Prevention, Suzhou 215004, China.
Zhonghua Liu Xing Bing Xue Za Zhi. 2013 Apr;34(4):316-20.
Seasonal variation in blood pressure had been observed in several studies on Western populations, but uncertainty remains about the strength of the relationship in other populations and the extent to which it was modified by other factors.
This study was based on cross-sectional data from the China Kadoorie Biobank study with 53 260 men and women from the Suzhou area involved. Linear regression model was used to analyze the association of blood pressure with outdoor temperature-overall and in various subgroups.
Blood pressure varied with the seasons, ascending in winter and descending in summer. The difference in systolic blood pressure (SBP) between summer and winter was 8.8 mm Hg in men and 7.0 mm Hg in women. SBP was inversely correlated with outdoor temperature, especially above 10°C, with every 10°C colder temperature causing 6.1 mm Hg increase of SBP. The seasonal variation in SBP was more obviously seen in older people and in those with lower body mass index.
Blood pressure was strongly and inversely associated with outdoor temperature in the population in Suzhou area. Seasonal variation of blood pressure should be considered when the hypertension screening programs, clinical management and data management on hypertensive patients.
在多项针对西方人群的研究中观察到血压存在季节性变化，但其他人群中这种关系的强度以及其受其他因素影响的程度仍不明确。
本研究基于中国嘉道理生物银行研究的横断面数据，涉及苏州地区的53260名男性和女性。采用线性回归模型分析血压与室外温度之间的总体关联以及在各个亚组中的关联。
血压随季节变化，冬季上升而夏季下降。男性夏季和冬季的收缩压（SBP）差值为8.8毫米汞柱，女性为7.0毫米汞柱。SBP与室外温度呈负相关，尤其是在10°C以上时，每降低10°C，SBP升高6.1毫米汞柱。SBP的季节性变化在老年人和体重指数较低的人群中更为明显。
苏州地区人群的血压与室外温度呈强烈负相关。在高血压筛查项目、高血压患者的临床管理和数据管理中应考虑血压的季节性变化。
