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流行曲线是将发病例数按照发病时间作直方图描述暴发疫情时间分布的一种方法,在暴发疫情的流行病学调查中,制作流行曲线是描述性流行病学分析的重要环节。通过对流行曲线的观察,可以掌握病例发生的时间、判断疾病传播的模式、推断可能的暴露时间、识别特殊病例、评估控制措施的速度和效果等。本文将根据实践经验,介绍常用数据统计软件制作流行曲线的方法。
The epidemic curve is a method to describe the time distribution of outbreaks according to the time of onset as a histogram. In the epidemiological investigation of outbreaks, making epidemic curves is an important link in descriptive epidemiological analysis. Through the observation of the epidemic curve, we can grasp the time of occurrence, determine the mode of disease transmission, infer the possible exposure time, identify special cases, and evaluate the speed and effect of control measures. This article will be based on practical experience, introduction of popular data statistics software popular curve method.