Asymptotic distribution of score statistics for spatial cluster detection with censored data. - Archive ouverte HAL Access content directly
Journal Articles Biometrics Year : 2008

Asymptotic distribution of score statistics for spatial cluster detection with censored data.

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Abstract

SUMMARY: Cook, Gold, and Li (2007, Biometrics 63, 540-549) extended the Kulldorff (1997, Communications in Statistics 26, 1481-1496) scan statistic for spatial cluster detection to survival-type observations. Their approach was based on the score statistic and they proposed a permutation distribution for the maximum of score tests. The score statistic makes it possible to apply the scan statistic idea to models including explanatory variables. However, we show that the permutation distribution requires strong assumptions of independence between potential cluster and both censoring and explanatory variables. In contrast, we present an approach using the asymptotic distribution of the maximum of score statistics in a manner not requiring these assumptions.
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Dates and versions

inserm-00262060 , version 1 (10-03-2008)

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  • HAL Id : inserm-00262060 , version 1
  • PUBMED : 19051394

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Daniel Commenges, Benoit Liquet. Asymptotic distribution of score statistics for spatial cluster detection with censored data.. Biometrics, 2008, 64 (4), pp.1287-9; discussion 1289-2. ⟨inserm-00262060⟩

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