对国会区和其他美国行政地理区域的地理空间聚合方法的验证
Ben R Spoer1, Alexander S Chen1, Taylor M Lampe1
1New York University Grossman School of Medicine, Department of Population Health, Division of Epidemiology, New York, NY, USA.
SSM - population health
|September 15, 2023
概括
这项研究完善了人口加权方法,从较小的地理位置汇总美国国会区的健康数据. 该方法准确估计了关键的健康指标,为政策相关领域提供了有价值的数据.
科学领域:
- 医疗数据分析健康数据分析.
- 地缘空间健康信息系统
- 公共卫生政策 公共卫生政策
背景情况:
- 与政策相关的地理位置,如美国国会区,往往缺乏详细的健康数据.
- 从较小的单位 (例如,县,人口普查区) 汇总数据是估计这些较大的地区健康指标的策略.
- 方法的决定对于准确的数据聚合至关重要.
研究的目的:
- 改进和评估一个人口加权方法,从组成部分的地理位置汇总健康指标估计到目标地理位置.
- 用美国人口普查美国社区调查数据评估精细聚合方法的准确性.
- 确定在美国国会区级别创建健康数据指标的最佳实践.
主要方法:
- 改进了人口加权聚合方法,将来自较小地理区域的健康数据结合到较大的地理区域.
- 该方法的准确性通过将宽带接入,高中毕业率和失业率的综合估计与美国人口普查美国社区调查的直接估计进行比较来验证.
- 进行了四项灵敏度分析,以测试计数与百分比的聚合,组件地理大小,数据缺失和人口重叠.
主要成果:
- 综合健康指标估计与直接从同一指标和年份的数据源中提取的估计密切匹配.
- 敏感性分析表明,使用更小,更多的组件地理 (如人口普查区) 通常会比更大的 (如县) 产生更好的结果.
- 发现组成部分和目标地理区域之间人口重叠的百分比较高是准确聚合的有利条件.
结论:
- 精细的人口加权聚合方法为政策相关的地理区域 (如美国国会选区) 提供了准确的健康指标估计.
- 最佳实践包括利用较小的地理组成部分 (例如,人口普查区) 和优先考虑人口重叠的地区.
- 这种方法可以帮助弥合美国国会区级别基本健康信息的数据缺口,支持基于证据的政策制定.
相关概念视频
Selected Data About Geographic Locations
43
Geographic Information Systems (GIS) rely on two core types of data: spatial data and attribute data.Spatial DataSpatial data defines the physical location of features within a coordinate system, typically expressed in terms of latitude and longitude. It provides precise positioning for elements like roads, rivers, or buildings.Attribute DataAttribute data complements spatial data by adding descriptive information about these features. For example, a road's spatial data includes its start and...
43
Manipulation and Analysis
42
GIS manipulation and analysis functions are vital for decision-making and planning. These activities range from data retrieval tasks, such as selecting information based on specific criteria, to advanced analytical techniques that address complex spatial problems.One critical GIS analysis method is overlaying, which combines multiple data layers to examine impacts. For example, overlaying a river-dammed lake boundary with road networks can identify affected infrastructure. Another common...
42
GIS Software, Hardware, and Sources of GIS Data
92
A Geographic Information System (GIS) combines specialized software and hardware to effectively manage, analyze, and present spatial and related data. GIS software includes critical functionalities such as a user interface for easy navigation, database management tools for handling spatial and attribute data, and data retrieval features for efficient access. Analytical tools transform raw data into insights, while display functions produce maps and reports in various formats for effective...
92
Levels of Use of a GIS
71
Geographic Information Systems (GIS) operate across three levels of application, each representing an increasing degree of complexity: data management, analysis, and prediction. These levels reflect the expanding functionality and versatility of GIS technology in handling spatial data for diverse purposes.Data ManagementAt its foundational level, GIS serves as a tool for data management, enabling the input, storage, retrieval, and organization of spatial data. This level is often employed in...
71
Introduction to GIS
87
Geographic Information Systems (GIS) are tools for storing, analyzing, and displaying spatial data alongside related attributes. Unlike traditional information systems that address general queries, GIS incorporates spatial components, enabling users to answer "where" and "how far." For example, GIS can process housing data linked to geographic locations like zip codes, allowing insights into population density or housing distribution through thematic maps.GIS integrates technologies such as...
87
Design Example: Alignment of a Road Line Using GIS
66
The alignment of a road line using Geographic Information Systems (GIS) is a critical process in civil engineering, combining advanced technology with practical decision-making. This methodology begins with the collection of geospatial data, including information on land cover, geomorphology, drainage patterns, slope, and contour details. Such data is typically acquired through satellite imagery and GIS tools, offering a comprehensive understanding of the terrain.Once the data is gathered, it...
66


