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Table 3 Chart of the ratio of imbalance given the two sample sizes of 66 and 264

From: Randomization in substance abuse clinical trials

  Ratio of Imbalance (n = 66)/(n = 264)
RANDOMIZATON PROCEDURE cocaine (50:50) ratio gender (25:75) ratio
COMPLETE OR SIMPLE 1.99 2.50
STRATIFIED SIMPLE   
URN 3.04 1.53
STRATIFIED URN 1.90 2.80
BLOCKED 1.56 2.65
STRATIFIED BLOCKED   
COVARIATE ADAPTIVE (2) 2.38 0.80
COVARIATE ADAPTIVE (5) 2.21 1.20