For example, a UK study by Dixon et al. 9 compared the risk of tuberculosis ... K., Solomon, D. & Kim, S. Active-comparator design and new-user design in observational studies ...

Why register observational studies? Much of the rationale for the prospective registration of clinical trials 9 applies to the registration of observational studies (). 7 For example, observational ...

Why with observation alone there is no random assignment of exposure, so confounding by other factors should always be considered as an explanation for associations found in an observational study.

10 Observational studies. Introduction to observational studies; Building evidence - an example; ... For example, studies that recruit from families or clusters of individuals that share ...

Familiarity with notions of research design in the social sciences, to the level ... difference-in-difference, and regression discontinuity. Examples are drawn from different social sciences. The ...

Although we must recognize that observational studies are also prone to limitations associated with misclassification, under-reporting, or ascertainment, criteria have been established to design and ...

SPADE: Design of a real-world observational study of avelumab first-line (1L) maintenance in advanced urothelial carcinoma (UC) in the Asia-Pacific (APAC) region. Authors: Po-Jung Su, Se Hoon Park, Yu ...

Familiarity with notions of research design in the social sciences, to the level ... difference-in-difference, and regression discontinuity. Examples are drawn from different social sciences. The ...