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Open Source Statistics for Public HealthDocumentationTestingAboutHelp

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Author(s)
Statistics
Kevin M. Sullivan, Emory University
and Andrew G. Dean, EpiInformatics.com
based on code from John C. Pezzullo
Exact and maximum likelihood statistics adapted from a Pascal program by David Martin

Interface
Andrew G. Dean and Roger Mir
PersonTime2--Comparing Two Person-Time Rates
This module compares case rates in exposed and unexposed persons, using person time of exposure or non-exposure as denominators. Time can be entered as person-hours, -days, -years, etc., using the same units for exposed and unexposed persons.

Fisher and midP exact tests are included in the results. More than one stratum can be entered to calculate both crude and adjusted statistics.

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