Using the Standardized Difference to Compare the Prevalence of a Binary Variable Between Two Groups in Observational Research
Using the Standardized Difference to Compare the Prevalence of a Binary Variable Between Two Groups in Observational Research
P. Austin
2009 · DOI: 10.1080/03610910902859574
Communications in statistics. Simulation and computation · 2,168 Citations
TLDR
The utility and interpretation of the standardized difference for comparing the prevalence of dichotomous variables between two groups is explored, and a standardized difference of 10% is equivalent to having a phi coefficient of 0.05 for the correlation between treatment group and the binary variable.