Impact of time-varying exposure on estimated effects in observational studies using routinely collected data: protocol for a cross-sectional study

Impact of time-varying exposure on estimated effects in observational studies using routinely collected data: protocol for a cross-sectional study

Introduction Time-varying exposure is an important issue that should be addressed in longitudinal observational studies using routinely collected data (RCD) for drug treatment effects. How well investigators designed, analysed and reported time-varying exposure, and to what extent the divergence tha...

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Main Authors: Ling Li, Xin Sun, Jing Tan, Mei Liu, Wen Wang, Kevin Lu, Guowei Li, Jiayue Xu, Jeff Jianfei Guo
Format: Article
Language:English
Published: BMJ Publishing Group 2022-07-01
Series:BMJ Open
Online Access:https://bmjopen.bmj.com/content/12/7/e062572.full
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