Propensity score analysis is another approach to the estimation of an intervention effect in observational data that enables the inclusion of a large number of covariates and a transparent assessment ...

Matched sampling is a standard technique for controlling bias in observational studies due to specific covariates. Since Rosenbaum & Rubin (1983), multivariate matching methods based on estimated ...

An asthma case management program increased preventive care but did not significantly decrease markers of exacerbations. Objective: To estimate the treatment effect of participation in an asthma ...