尽管有几项研究调查了环境温度对中风风险的影响,很少有研究研究其他气象条件与中风之间的关系。因此,本研究的目的是分析风相关变量与卒中症状发病之间的关联.
关于2006年1月1日至2007年12月31日在济州岛发生的中风症状的数据是从济州岛国立大学医院中风登记处收集的。基于开始时间并针对环境温度进行调整的固定地层案例交叉分析,相对湿度,空气压力,污染物被用来分析风速的影响,每日风速范围(DWR),和风寒指数对中风症状发作的影响,使用不同的滞后项。按年龄检查修改效果的模型,性别,吸烟状况,季节,和中风类型也进行了分析。
在2006年至2007年期间,共记录了409例中风事件(381例缺血性事件和28例出血性事件)。风速的赔率比(ORs),DWR,在滞后0-8的总样本中,风寒为1.18(95%置信区间(CI):1.06-1.31),1.08(95%CI:1.02-1.14),和1.22(95%CI:1.07-1.39)。风速的OR,DWR,在总样本中,缺血性卒中患者的风寒程度略高于患者(OR=1.20,95%CI:1.08-1.34;OR=1.09,95%CI:1.03-1.15;OR=1.22,95%CI:1.07-1.39).在春季和冬季发现了具有统计学意义的特定季节效应,并观察到各种延迟效应。此外,年龄,性别,吸烟状态改变了风速的影响大小,DWR,和风寒。
我们的分析表明,中风症状发作的风险与风速有关,DWR,济州岛的风寒。
Although several studies have investigated the effects of ambient temperature on the risk of stroke, few studies have examined the relationship between other meteorological conditions and stroke. Therefore, the aim of this study was to analyze the association between wind-related variables and stroke symptoms onset.
Data regarding the onset of stroke symptoms occurring between January 1, 2006, and December 31, 2007 on Jeju Island were collected from the Jeju National University Hospital stroke registry. A fixed-strata
case-crossover analysis based on time of onset and adjusted for ambient temperature, relative humidity, air pressure, and pollutants was used to analyze the effects of wind speed, the daily wind speed range (DWR), and the wind chill index on stroke symptom onset using varied lag terms. Models examining the modification effects by age, sex, smoking status, season, and type of stroke were also analyzed.
A total of 409 stroke events (381 ischemic and 28 hemorrhagic) were registered between 2006 and 2007. The odds ratios (ORs) for wind speed, DWR, and wind chill among the total sample at lag 0-8 were 1.18 (95% confidence interval (CI): 1.06-1.31), 1.08 (95% CI: 1.02-1.14), and 1.22 (95% CI: 1.07-1.39) respectively. The ORs for wind speed, DWR, and wind chill for ischemic stroke patients were slightly greater than for patients in the total sample (OR=1.20, 95% CI: 1.08-1.34; OR=1.09, 95% CI: 1.03-1.15; and OR=1.22, 95% CI: 1.07-1.39, respectively). Statistically significant season-specific effects were found for spring and winter, and various delayed effects were observed. In addition, age, sex, and smoking status modified the effect size of wind speed, DWR, and wind chill.
Our analyses showed that the risk of stroke symptoms onset was associated with wind speed, DWR, and wind chill on Jeju Island.