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实证预测间隔应用于短期死亡率预测和过度死亡
Ricarda Duerst1,2, Jonas Schöley3
1Max Planck Institute for Demographic Research, Konrad-Zuse-Straße 1, 18057, Rostock, Germany. duerst@demogr.mpg.de.
Population health metrics
|December 11, 2024
概括
过度死亡估计可能是不可靠的,因为预测错误. 新的经验预测间隔提供了一种更准确的方法来研究每周死亡率趋势和过度死亡的季节性变化.
科学领域:
- 人口统计学 人口统计学
- 生物统计学 生物统计学
- 流行病学 流行病学
背景情况:
- 德国2022/2023年冬季的过度死亡估计显示增加了10%,引发了对死亡率的担忧.
- 由于人口预测模型中固有的错误,这些估计的可靠性是可疑的.
- 本研究调查了每周死亡预测中的错误分布,以改善过度死亡估计.
研究的目的:
- 开发和验证一种用于分析每周预期和过度死亡的新方法.
- 与传统方法相比,为死亡率偏差提供更准确的概率评估.
- 在不同的季节条件下,量化检测大量过度死亡的概率.
主要方法:
- 利用来自23个国家的短期死亡数据库 (STMF) 的每周死亡数据.
- 基于历史预测错误分布提出的经验预测间隔.
- 将经验性偏斜正常间隔与传统参数间隔的校准与负双项通用添加模型 (GAM) 的校准进行了比较.
主要成果:
- 经验性偏差-正常预测间隔与不同国家的常规参数间隔相比,显示出更好的校准.
- 预测间隔方法的选择显著影响过度死亡严重性的评估.
- 分析显示,与标准GAM结果相反,在夏季或冬季在非流行病条件下,每周10%的过度死亡并不罕见.
结论:
- 准确的预测间隔对于考虑到死亡率预测中的季节性不确定性至关重要.
- 经验预测间隔为估计过度死亡分析中预测不确定性提供了更强大和可靠的方法.
- 这些发现强调了需要先进的统计方法来准确解释死亡率数据的需要.
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