附录IV:使用SUDAAN和SAS转换比例的方差-共方差矩阵的例子,用于LOG-odds尺度
NCHS data brief
|December 9, 2025
概括
本报告指导分析师在Joinpoint软件和国家卫生统计中心 (NCHS) 趋势分析的调查分析软件之间的不一致性. 它解释了为什么会出现差异,并为准确的调查数据分析提供了建议.
科学领域:
- 生物统计学 生物统计学
- 流行病学 流行病学
- 分析健康数据 分析健康数据
背景情况:
- 国家卫生统计中心 (NCHS) 的指导方针建议使用特定的软件来分析调查数据的趋势.
- 加入点回归软件和调查分析软件通常用于趋势分析.
- 在分析调查数据时,这些软件包之间可能会出现明显的不一致.
研究的目的:
- 为处理和解释Joinpoint软件和调查分析软件之间的不一致性提供指导.
- 为了补充现有的NCHS指南,分析调查数据的趋势.
- 帮助分析师为他们的数据分析做出明智的决策.
主要方法:
- 确定了Joinpoint和调查分析软件之间可能出现不一致的场景.
- 通过使用文本,示例和常见问题,讨论了观察到的差异的合理解释.
- 专注于提供建议,警告和额外信息,而不是直接解决方案.
主要成果:
- 当使用调查分析软件估计来自Joinpoint软件的零碎回归模型时,经常会出现不一致的情况.
- 连续的斜率可能不具有统计学意义,导致最终模型中删除连接点.
- 对这些差异的潜在解释被分为五个主要领域.
结论:
- 了解软件差异的原因对于准确的趋势分析至关重要.
- 分析师应该意识到在使用Joinpoint和调查分析软件一起使用时可能存在的陷.
- 本报告作为一个有价值的资源,用于导航复杂的趋势分析与NCHS调查数据.
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