Egret

The most user-friendly statistical package for epidemiologists is completely redesigned to take full advantage of Windows 95/98 and NT/2000.

Comprehensive Set of Models:
Many not available elsewhere

• Contingency tables
• Logistic regression
• Conditional logistic regression*
• Logistic regression with random effects
• Beta-binomial regression
• Poisson regression
• Weibull regression
• Exponential regression
• Cox proportional hazards regression
• Cox regression with time-dependent covariates
• Kaplan-Meier analysis and plots
• Extensive post-fit analysis with plots, including delta-betas, hazard functions, and more.

• Odds ratio inference
• Exact test of homogeneity for odds ratios
• Exact test of unity for the common odds ratio
• Exact confidence interval for the common odds ratio
• Exact test of trend for k ordered binomial populations
• Exact test of independence for k unordered binomial populations
• Monte Carlo importance sampling option for difficult computations

• Intuitive, Windows-standard graphical environment.
  Use the CaseEditor, EGRETās powerful data editor, to create, modify and view data.
  Use descriptive menus and dialog boxes to define a regression model for analysis.
  The EGRET Results Workbook window presents analysis results and post-fit diagnostics.
  The Output Log Window accumulates in the background all output and generated results from the current session.
  EGRET's default control settings can be easily viewed or changed.
  Save current workspace with current settings for quick-restart.
• The nearly 300-page manual includes tutorials and descriptions of all windows and dialog boxes, the analysis models and post-fit regression diagnostics, descriptive statistics and the case-editor, and other features.
• Appendices list model fitting procedures and example data sets, and are followed by references and an index.