commonly used methods for analysing datasets with incomplete observations were relatively ad hoc (e.g. case deletion, mean ….g. multiple imputation) have been proposed that attempt to correct the flaws of the simple imputation methods. Objectives: The … objectives are to provide a concise and accessible description of the quantitative methods most commonly used in trial-based cost …

West African population. Methods: Seventy subjects were purposely selected from seven randomly selected communities in a …

schemes on pharmaceutical prices in the former EU-15 countries. Methods: An analytical model was developed estimating the …

and applies various methods to control for selection bias in the estimation of treatment effects and proposes novel ways …. We describe and compare the use of regression methods, propensity score matching, fixed-effects models incorporating … investigator-reported outcomes. To illustrate these methods, we have used data from the SOHO (Schizophrenia Outpatient Health …