Binary "Exposure" w/ Binary Outcome ("Disease"), Cohort Design

Data may be derived experimentally (in which case the intervention = the exposure) or observationally in a forward (cohort) or adirectional (cross-sectional) manner.

Data are stored in the form of a binary "exposure" (comparable to the independent variable) and binary outcome variable (comparable to a dependent variable).

Data are cross-tabulated with a TABLES <EXPOSURE> <DISEASE> command. The compiles the 2-by-2 table and calculates relative risk and odds ratio statistics. It also computes chi-square test statistics and Fisher's test when needed. Optionally, a SET PERCENTS = ON command may be use to calculate relevant (row) percentages.