Data Analysis Plans: A Blueprint for Success Using SAS

Data Definitions

Include a table that lists all of the variables expected to be used in the analysis. A variable table may look like the one below.

Description	Definition	Data Type	Unit	Coding
Treatment group	assigned at randomization	Cat		0=active,1=placebo
Age	age at first screening	N	years
Weight	weight at randomization	N	kg
Height	standing height at randomization	N	cm
BMI	body mass index, derived	N	kg/m2	weight/height2

Indicate which variables are derived from others, and how they were or will be derived. See BMI in the table for example.

This table can be simple or very detailed, depending on your needs. Provide the level of detail necessary ...