Testing for Homogeneity: II. The Poisson Distribution

Potthoff, Richard F.; Whittinghill, Maurice

doi:10.2307/2334063

Cited by 32 publications

(58 citation statements)

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“…Pearson's correlation and regression analysis were used to examine relationships between SIRs and possible geographically varying risk factors. The Potthoff-Whittinghill test 15,16 was used to identify spatial clustering (irregular grouping of cases in space) and the Smans's test 17 was used for spatial autocorrelation (extent to which incidence at one location depends on incidences in nearby locations). For space-time clustering (excess cases occurring at localized points simultaneously in time and space) the time and place of birth were considered to be most important owing to the congenital nature of the condition.…”

Section: Methodsmentioning

confidence: 99%

Geographical Distribution of Optic Nerve Hypoplasia and Septo-optic Dysplasia in Northwest England

Patel

McNally

Harrison

et al. 2006

The Journal of Pediatrics

156

134

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Section: Methodsmentioning

confidence: 99%

Geographical Distribution of Optic Nerve Hypoplasia and Septo-optic Dysplasia in Northwest England

Patel

McNally

Harrison

et al. 2006

The Journal of Pediatrics

156

134

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“…The Potthoff-Whittinghill (P-W) method was used to test for spatial clustering [19,20,21]. The method requires aggregated case and birth data for small geographical areas.…”

Section: Statistical Analysesmentioning

confidence: 99%

Evidence of an environmental contribution to the aetiology of cryptorchidism and hypospadias?

et al. 2007

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The finding of localized spatial heterogeneity in the prevalence of cryptorchidism and hypospadias is consistent with the involvement of a spatially varying environmental risk factor. The apparent social patterning of hypospadias is likely to reflect an association with lifestyle and other factors which underpin social variation in health. However, there also remains a possibility that these findings may be due to variability in ascertainment of cases.

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“…Using the non-parametric bootstrap method, we computed the 95 % bias-corrected accelerated confidence interval for k 0 based on 10 000 resamples. We performed the Potthoff-Whittinghill 'index of dispersion ' test to investigate whether this dataset deviates significantly from one describing a disease with homogeneous transmission probabilities, as estimated under Poisson distribution [17].…”

Section: Methodsmentioning

confidence: 99%

Transmission dynamics of primary pneumonic plague in the USA

et al. 2011

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Plague is thought to have killed millions during three catastrophic pandemics. Primary pneumonic plague, the most severe form of the disease, is transmissible from person-to-person and has the potential for propagating epidemics. Efforts to quantify its transmission potential have relied on published data from large outbreaks, an approach that artificially inflates the basic reproductive number (R(0)) and skews the distribution of individual infectiousness. Using data for all primary pneumonic plague cases reported in the USA from 1900 to 2009, we determined that the majority of cases will fail to transmit, even in the absence of antimicrobial treatment or prophylaxis. Nevertheless, potential for sustained outbreaks still exists due to superspreading events. These findings challenge current concepts regarding primary pneumonic plague transmission.

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Testing for Homogeneity: II. The Poisson Distribution

Cited by 32 publications

References 0 publications

Geographical Distribution of Optic Nerve Hypoplasia and Septo-optic Dysplasia in Northwest England

Geographical Distribution of Optic Nerve Hypoplasia and Septo-optic Dysplasia in Northwest England

Evidence of an environmental contribution to the aetiology of cryptorchidism and hypospadias?

Transmission dynamics of primary pneumonic plague in the USA

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