how to determine a patient's treatment effect by demographic characteristics does non-treatment factors affect y what factors determine the outcome of treatment do i know the effect of a treatment why are demographic factors used to rank patients is treatment factor a demographic variable which demographic variables can be used to rank patients what are nontreatment variables what factors are associated with patient change what demographic factors are associated with treatment for a given patient? which demographics are associated with a greater change in Y what is the difference between treatment and non-treatment factors how do we find patient response to treatment what factors determine treatment response do non-treatment factors affect changes in the patient how to determine how much a patient will be affected by a treatment which factor is associated with the biggest change of a variable? what variables are associated with a treatment change? do non-treatment factors affect y what factors are associated with a patient's expected treatment change?