Editorial: Observational Studies, Time‐Dependent Confounding, and Marginal Structural Models
Editorial: Observational Studies, Time‐Dependent Confounding, and Marginal Structural Models
ARTHRITIS & RHEUMATOLOGY Vol. 67, No. 3, March 2015, pp 609–611 DOI 10.1002/art.38931 © 2015, American College of Rheumatology EDITORIAL Observational Studies, Time-Dependent Confounding, and Marginal Structural Models Charles E. McCulloch Observational studies have an undeniable role in medical research and often have significant advan- tages over randomized trials (1), …