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はじめに
FleXScanは対象地域の中で観察された疾病がある地域に集積しているかどうかという疾病集積性(disease clustering)の検討をするための統計解析をWindows上で行うことができるソフトウェアです。集積性の検定にはいくつかの手法が提案されていますが,FleXScanではKulldorff’s Circular Scan法,Tango and Takahashi’s Flexible Scan法の2つによって検討することができます。
高橋 邦彦.名古屋大学 大学院医学系研究科臨床医薬学講座生物統計学分野准教授
横山 徹爾.国立保健医療科学院 生涯健康研究部長
丹後 俊郎.医学統計学研究センター長
Introduction
The FleXScan software has been developed to analyze spatial count data using the flexible spatial scan statistic developed by Tango and Takahashi (2005) and Kulldorff's circular spatial scan statistic (1997).
The FleXScan software is a free software program designed for any of the following interrelated purposes:
To evaluate reported spatial disease clusters, to see if they are statistically significant.
To test whether a disease is randomly distributed over space.
To perform geographical surveillance of disease, to detect areas of significantly high rates.
FleXScan uses the Poisson model and the Binomial model. The data may be either aggregated at the census tract, zip-code, county or other geographical level. FleXScan can adjust for the underlying inhomogeneity of a background population and for any number of categorical covariates provided by user.
Copyrights
The FleXScan software is copyrighted by Kunihiko Takahashi, Tetsuji Yokoyama and Toshiro Tango, Japan.
Kunihiko Takahashi, Ph.D. Associate Professor, Department of Biostatistics, Nagoya University Graduate School of Medicine.
Tetsuji Yokoyama, Ph.D. Departiment Director, Department of Health Promotion, National Institute of Public Health.
Toshiro Tango, Ph.D. Director, Center for Medical Statistics.