9/23/2023 0 Comments Types of randomization![]() The first could result in a randomization where 100 patient positions include male smokers, but 200 other patient positions include either male nonsmokers or females. Three strata: male smokers male nonsmokers women Two strata: male smokers male nonsmokers and women However, these stratification patterns impose different constraints on randomization. For example, superficially the following two examples of stratification for a study seem to be the same. You create strata with a view to preserving statistical significance. ![]() ![]() For example, you could stratify a study according to the following groups: Oracle Clinical provides stratification utilities to ensure that the groups you select are mutually exclusive and represent a full cross-section of your study's population. ![]()
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