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arXiv 2301.01693stat.APstat.OT
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老年死亡率建模:混合模型方法

Mortality modeling at old-age: a mixture model approach

Silvio C. Patricio, Fredy Castellares, Bernardo L. Queiroz

摘要:

本文提出了一种新的方法来建模70岁以上的死亡率,提出了一个基于混合模型。该模型与其他四种广泛使用的模型进行了比较:Beard,Gompertz,Makeham和Perks模型。我们的模型可以捕捉所有年龄段死亡率的复杂行为,提供更准确的数据表示。为了评估模型的性能,我们将其应用于两个数据质量不同的国家:日本和巴西。我们的研究结果表明,该模型优于其他模型在这两个国家,特别是在日本,它获得了一个绝对平均百分比误差小于7%,而其他模型提出的值大于30%。这突出了我们的模型适应不同数据质量和国家特定死亡率模式的能力。总之,本文提出了一种基于混合的模型,该模型捕捉了所有年龄段的死亡率行为,并且在高质量和低质量数据设置中优于其他广泛使用的模型。该模型可以改善死亡率预测并为公共卫生政策提供信息。

英文摘要:

This paper presents a novel approach for modeling mortality rates above age 70 by proposing a mixture-based model. This model is compared to four other widely used models: the Beard, Gompertz, Makeham, and Perks models. Our model can capture the complex behavior of mortality rates at all ages, providing a more accurate representation of the data. To evaluate the performance of our model, we applied it to two countries with different data quality: Japan and Brazil. Our results show that the proposed model outperforms the other models in both countries, particularly in Japan where it obtained an absolute mean percentage error of less than 7%, while the other models presented values greater than 30%. This highlights the ability of our model to adapt to different data quality and country-specific mortality patterns. In summary, this paper presents a mixture-based model that captures the behavior of mortality rates at all ages and outperforms other widely used models in both high- and low-quality data settings. This model can improve mortality prediction and inform public health policy.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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