Characteristics and quality of systematic reviews and meta-analyses of observational nutritional epidemiology: a cross-sectional study.

ABSTRACT:

Background

Dietary recommendations and policies should be guided by rigorous systematic reviews. Reviews that are of poor methodological quality may be ineffective or misleading. Most of the evidence in nutrition comes from nonrandomized studies of nutritional exposures (usually referred to as nutritional epidemiology studies), but to date methodological evaluations of the quality of systematic reviews of such studies have been sparse and inconsistent.

Objectives

We aimed to investigate the quality of recently published systematic reviews and meta-analyses of nutritional epidemiology studies and to propose guidance addressing major limitations.

Methods

We searched MEDLINE (January 2018-August 2019), EMBASE (January 2018-August 2019), and the Cochrane Database of Syste

SUBMITTER: Zeraatkar D 

PROVIDER: S-EPMC8243916 | biostudies-literature | 2021 Jun

REPOSITORIES: biostudies-literature