We ran propensity score analyses using the PLE package. In the covariate balance table, the sums of the percentages in the tabulated age groups equal to only ~67% for both the target and comparator group. The age groups 70-74 and 80-84 for both target and comparator are missing. Clinically it is unusual to have no one present in these age groups as well. Does anyone know how to fix it? Many thanks!
An example of data output is shown below