list with 2 elements for ATT effect. It contains
ATT12:A dataframe containing the estimation,
standard error, lower and upper 95% CI for RD/RR/OR
ATT13:A dataframe containing the estimation,
standard error, lower and upper 95% CI for RD/RR/OR
list with 3 elements for ATE effect. It contains
ATE12:A dataframe containing the estimation,
standard error, lower and upper 95% CI for RD/RR/OR
ATE13:A dataframe containing the estimation,
standard error, lower and upper 95% CI for RD/RR/OR
ATE23:A dataframe containing the estimation,
standard error, lower and upper 95% CI for RD/RR/OR