Orius software: calculation of rates and epidemiologic indicators, and preparation of graphical output.

Orius software produces disease surveillance statistics, including output for the Health Canada Web site "Cancer Statistics Online" and on-demand statistics at the Web site for the North American Association of Central Cancer Registries. It allows flexibility in accessing data; storing, modifying and customizing requests; and producing statistical results and graphical output. Results include age-standardized or age-sex-standardized rates, standardized incidence/mortality ratios (observed-to-expected ratios) in which one area is optionally selected as the reference, potential years of life lost, average annual percent change, Mantel-Haenszel and maximum likelihood rate ratios, and the comparative incidence figure.