DOI: 10.1016/j.jag.2012.03.002
Scopus记录号: 2-s2.0-84883049406
论文题名: Analysis of geographical disparities in temporal trends of health outcomes using space-time joinpoint regression
作者: Goovaerts P
刊名: International Journal of Applied Earth Observation and Geoinformation
ISSN: 15698432
出版年: 2013
卷: 22, 期: 1 起始页码: 75
结束页码: 85
语种: 英语
英文关键词: Binomial kriging
; Boundary analysis
; Cancer
; Cluster analysis
; Late-stage diagnosis
; Urbanization
Scopus关键词: cancer
; cluster analysis
; kriging
; least squares method
; public health
; regression analysis
; spatiotemporal analysis
; trend analysis
; urbanization
; Florida [United States]
; United States
英文摘要: Analyzing temporal trends in health outcomes can provide a more comprehensive picture of the burden of a disease like cancer and generate new insights about the impact of various interventions. In the United States such an analysis is increasingly conducted using joinpoint regression outside a spatial framework, which overlooks the existence of significant variation among U.S. counties and states with regard to the incidence of cancer. This paper presents several innovative ways to account for space in joinpoint regression: (1) prior filtering of noise in the data by binomial kriging and use of the kriging variance as measure of reliability in weighted least-square regression, (2) detection of significant boundaries between adjacent counties based on tests of parallelism of time trends and confidence intervals of annual percent change of rates, and (3) creation of spatially compact groups of counties with similar temporal trends through the application of hierarchical cluster analysis to the results of boundary analysis. The approach is illustrated using time series of proportions of prostate cancer late-stage cases diagnosed yearly in every county of Florida since 1980s. The annual percent change (APC) in late-stage diagnosis and the onset years for significant declines vary greatly across Florida. Most counties with non-significant average APC are located in the north-western part of Florida, known as the Panhandle, which is more rural than other parts of Florida. The number of significant boundaries peaked in the early 1990s when prostate-specific antigen (PSA) test became widely available, a temporal trend that suggests the existence of geographical disparities in the implementation and/or impact of the new screening procedure, in particular as it began available. © 2012 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/79820
Appears in Collections: 气候变化事实与影响
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作者单位: BioMedware Inc., 121W, Washington St., 4th Floor-TBC, Ann Arbor, MI 48104, United States
Recommended Citation:
Goovaerts P. Analysis of geographical disparities in temporal trends of health outcomes using space-time joinpoint regression[J]. International Journal of Applied Earth Observation and Geoinformation,2013-01-01,22(1)