介绍贝叶斯空间平滑方法用于疾病映射:模拟县枪支自杀死亡率和死亡率
American journal of epidemiology
|February 20, 2024
概括
贝叶斯空间平滑模型通过稳定不稳定的县级死亡率来改善枪支自杀地图. 这些先进的统计方法为公共卫生专业人员提供可靠的估计,即使死亡人数很少.
科学领域:
- 生物统计学 生物统计学
- 空间流行病学 空间流行病学
- 公共卫生 公共卫生
背景情况:
- 由于数据有限,疾病测绘通常面临着小面积估计的挑战.
- 枪支自杀数据在原始率上呈现出很高的变化,特别是在死亡人数较少的县里.
- 现有的方法很难为小地理区域提供稳定的死亡率估计.
研究的目的:
- 向公共卫生专业人员介绍贝叶斯空间平滑模型用于疾病映射.
- 将Besag,York和Mollié (BYM) 模型应用于枪支自杀数据 (2014-2018).
- 证明这些模型对评估空间健康差异的有用性.
主要方法:
- 使用贝叶斯空间和时空平滑模型 (BYM Poisson).
- 2014-2018年,与县级枪支自杀数量相匹配的模型.
- 在R软件中采用了新的估计技术,以提高可访问性.
主要成果:
- 原始县枪支自杀死亡率差异很大 (每10,000人中0-24.81人),许多县由于数量低而被压制.
- 空间平衡的估计范围从每10,000人中0.06到4.05,为所有县提供估计.
- 时空模型产生了类似的估计,可信度间隔较窄,提高了精度.
结论:
- 贝叶斯空间平滑有效地解决了在小地理区域的高度可变率估计.
- 这些方法对于评估空间健康差异,特别是对于罕见事件有价值.
- 这些模型在R的可访问性提高有助于研究人员和公共卫生专业人员使用它们.
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