Managing confounding and effect modification in pediatric/congenital interventional cardiology research.

TitleManaging confounding and effect modification in pediatric/congenital interventional cardiology research.
Publication TypeJournal Article
Year of Publication2021
AuthorsO'Byrne ML, Glatz AC
JournalCatheter Cardiovasc Interv
Date Published2021 Aug 22
ISSN1522-726X
Abstract

Measuring the effect of a treatment on outcomes is an important goal for research in pediatric/congenital interventional cardiology. The breadth of anatomic and physiologic variations, patient ages, and genetic syndromes and noncardiac comorbid conditions all represent sources of potential confounding and effect modification that are major obstacles to this goal. If not accounted for, these factors can obscure the "true" treatment effect and lead to spurious conclusions about the relative efficacy and/or safety of therapies. In this review, we discuss the importance of confounding and effect modification in pediatric/congenital interventional cardiology research. We define these terms and discuss strategies (both in study design and data analysis) to mitigate error introduced by confounding and effect modification. The importance of confounding by indication in pediatric/congenital cardiology is discussed along with specific methods to address it.

DOI10.1002/ccd.29925
Alternate JournalCatheter Cardiovasc Interv
PubMed ID34420250