2002 年台湾高雄地区登革出血热危险区的登革热时空分布模式。
Spatial-temporal patterns of dengue in areas at risk of dengue hemorrhagic fever in Kaohsiung, Taiwan, 2002.
机构信息
Department of Geography, College of Science, National Taiwan University, Taipei, Taiwan.
出版信息
Int J Infect Dis. 2010 Apr;14(4):e334-43. doi: 10.1016/j.ijid.2009.06.006. Epub 2009 Aug 27.
OBJECTIVE
This study aimed to examine whether spatial-temporal patterns of dengue can be used to identify areas at risk of dengue hemorrhagic fever (DHF).
METHODS
Three indices - probability of case-occurrence, mean duration per wave, and transmission intensity - were used to differentiate eight local spatial-temporal patterns of dengue during the 2002 epidemic in Kaohsiung, Taiwan. DHF densities (DHF cases/km(2) per 100 dengue cases) in each spatial-temporal typed area were compared.
RESULTS
Areas with three high indices correlated with the highest DHF density: (1) high transmission intensity only; (2) long duration of wave only, and (3) high transmission intensity plus long duration of wave. However, cumulative incidences of dengue cases were not correlated with DHF densities.
CONCLUSION
Three spatial-temporal indices of dengue could provide useful information to identify areas at high risk of DHF.
目的
本研究旨在探讨登革热时空模式是否可用于识别登革出血热（DHF）高危地区。
方法
在台湾高雄市 2002 年的登革热流行期间，使用三个指标——病例发生概率、每波持续时间均值和传播强度，对 8 种局部时空登革热模式进行区分。比较各时空类型区域的 DHF 密度（每 100 例登革热病例中的 DHF 病例数 /km²）。
结果
三个高指标区域与最高 DHF 密度相关：（1）仅高传播强度；（2）仅波持续时间长，以及（3）高传播强度加长波持续时间。然而，登革热病例的累积发生率与 DHF 密度无关。
结论
登革热的三个时空指标可提供有用信息，以识别 DHF 高危地区。
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