Hi, I need to randomize 1,000 patients to 5 study conditions. I'd like to block on three factors, and preliminary data indicates that there is a predicted percentage of participants that will fall within each level within each factor: Factor 1=gender: male (60%; female (40%) Factor2= SUD: OUD only (32%); OUD+otherSUD(68%) Factor3: psych_severity yes(21%); no(79%) Please help thank you so much!
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