Heat waves and health outcomes in Alabama (USA): the importance of heat wave definition.
Heat waves and health outcomes in Alabama (USA): the importance of heat wave definition.
复制标题
DOI：
10.1289/ehp.1307262
复制
发表时间：
2014-02
影响因子：
10.4
通讯作者：
Gohlke JM
中科院分区：
文献类型：
--
作者：
Kent ST;McClure LA;Zaitchik BF;Smith TT;Gohlke JM
背景资料：更深入地了解热浪定义如何影响热暴露与健康之间的关系，特别是作为乡村生活的函数，将有助于开发有效的热浪预警系统。目标：我们比较了城市和农村地区不同热浪指数（HI）定义与早产（PTB）和非意外死亡（NAD）之间的关系。研究方法：我们使用时间分层病例交叉设计来估计PTB和NAD与热浪天数（使用15个HI定义）相对于美国亚拉巴马（1990-2010年）非热浪对照天数的相关性。邮政编码级别的HI是使用北美陆地数据同化系统的数据得出的。协会与热浪天定义使用不同的HI进行了比较自助。我们还研究了与农村的相互作用。结果：协会不同，取决于HI用于定义热浪天。热浪定义为至少连续2天平均日温度高于第98百分位数，与PTB升高32.4%（95% CI：3.7，69.1%）相关，热浪定义为至少连续2天平均日温度高于第90百分位数，与NAD升高3.7%（95% CI：1.1，6.3%）相关。结果表明，显着的积极协会更常见时，相对与绝对的HI被用来定义暴露。积极和消极的协会被发现在每个农村阶层。然而，所有层特定的显着协会是积极的，NAD协会与热浪是一贯积极的城市阶层，但不是在中间或农村阶层。结论：根据我们的研究结果，我们得出结论，一个相对的平均温度只有热浪的定义可能是最有效的度量热浪预警系统在亚拉巴马。引文：肯特ST，麦克卢尔LA，Zaitchik BF，Smith TT，Gohlke JM。2014.亚拉巴马（美国）热浪和健康结果：热浪定义的重要性。环境健康展望122：151-158; http：dx.doi.org/10.1289/ehp.1307262
Background: A deeper understanding of how heat wave definition affects the relationship between heat exposure and health, especially as a function of rurality, will be useful in developing effective heat wave warning systems. Objective: We compared the relationships between different heat wave index (HI) definitions and preterm birth (PTB) and nonaccidental death (NAD) across urban and rural areas. Methods: We used a time-stratified case-crossover design to estimate associations of PTB and NAD with heat wave days (defined using 15 HIs) relative to non–heat wave control days in Alabama, USA (1990–2010). ZIP code–level HIs were derived using data from the North American Land Data Assimilation System. Associations with heat wave days defined using different HIs were compared by bootstrapping. We also examined interactions with rurality. Results: Associations varied depending on the HI used to define heat wave days. Heat waves defined as having at least 2 consecutive days with mean daily temperatures above the 98th percentile were associated with 32.4% (95% CI: 3.7, 69.1%) higher PTB, and heat waves defined as at least 2 consecutive days with mean daily temperatures above the 90th percentile were associated with 3.7% (95% CI: 1.1, 6.3%) higher NAD. Results suggest that significant positive associations were more common when relative—compared with absolute—HIs were used to define exposure. Both positive and negative associations were found in each rurality stratum. However, all stratum-specific significant associations were positive, and NAD associations with heat waves were consistently positive in urban strata but not in middle or rural strata. Conclusions: Based on our findings, we conclude that a relative mean-temperature-only heat wave definition may be the most effective metric for heat wave warning systems in Alabama. Citation: Kent ST, McClure LA, Zaitchik BF, Smith TT, Gohlke JM. 2014. Heat waves and health outcomes in Alabama (USA): the importance of heat wave definition. Environ Health Perspect 122:151–158; http://dx.doi.org/10.1289/ehp.1307262
登录
查看更多内容
影响因子：
10.4
作者：
Ebi KL;Kovats RS;Menne B
通讯作者：
Menne B
影响因子：
4.4
作者：
Cosgrove, BA;Lohmann, D;Meng, J
通讯作者：
Meng, J
影响因子：
10.4
作者：
English PB;Sinclair AH;Ross Z;Anderson H;Boothe V;Davis C;Ebi K;Kagey B;Malecki K;Shultz R;Simms E
通讯作者：
Simms E
贝叶斯模型平均方法是估计105个城市中与热浪相关的死亡率相对的相对风险。
影响因子：
1.9
作者：
Bobb JF;Dominici F;Peng RD
通讯作者：
Peng RD
影响因子：
10.4
作者：
Anderson GB;Bell ML
通讯作者：
Bell ML