Overlap weighting of propensity scores between 2 groups based on logistic regression model will always lead to an exact balance in the means of any included covariate, so the ASMD will be . The weighted difference in means for the outcomes would be the average risk difference, and its SEs were used to estimate the CI. Risk ratio and CI were also calculated after overlap weighting to derive the E value, which is the minimum risk ratio that an unmeasured confounder would need to have with treatment and outcome to fully explain the treatment-outcome association.