Analysis of Observational Studies in the Presence of Treatment Selection Bias
Analysis of Observational Studies in the Presence of Treatment Selection Bias
Comparisons of outcomes between patients treated and untreated in observational studies may be biased due to differences in patient prognosis between groups, often because of unobserved treatment selection biases.To compare 4 analytic methods for removing the effects of selection bias in observational studies: multivariable model risk adjustment, propensity score risk …