作者
Dena Zeraatkar, Kevin Cheung, Kirolos Milio, Max Zworth, Arnav Gupta, Arrti Bhasin, Jessica J Bartoszko, Michel Kiflen, Rita E Morassut, Salmi T Noor, Daeria O Lawson, Bradley C Johnston, Shrikant I Bangdiwala, Russell J de Souza
发表日期
2019/10
来源
Current developments in nutrition
卷号
3
期号
10
页码范围
nzz104
出版商
Oxford University Press
简介
Background
Observational studies provide important information about the effects of exposures that cannot be easily studied in clinical trials, such as nutritional exposures, but are subject to confounding. Investigators adjust for confounders by entering them as covariates in analytic models.
Objective
The aim of this study was to evaluate the reporting and credibility of methods for selection of covariates in nutritional epidemiology studies.
Methods
We sampled 150 nutritional epidemiology studies published in 2007/2008 and 2017/2018 from the top 5 high-impact nutrition and medical journals and extracted information on methods for selection of covariates.
Results
Most studies did not report selecting covariates a priori (94.0%) or criteria for selection of covariates (63.3%). There was general inconsistency in choice of covariates, even among studies investigating similar questions. One-third of studies did not …
学术搜索中的文章
D Zeraatkar, K Cheung, K Milio, M Zworth, A Gupta… - Current developments in nutrition, 2019