Systematic assessment of environmental factors for gastroesophageal reflux disease: An umbrella review of systematic reviews and meta-analyses.
Dig Liver Dis
; 53(5): 566-573, 2021 May.
Article
in En
| MEDLINE
| ID: mdl-33339748
ABSTRACT
BACKGROUND:
Side effects of long-term acid suppression have increased the scholars' interest in nonpharmacologic intervention.AIMS:
We summarized an umbrella review of the association between environmental factors and gastroesophageal reflux disease (GERD) and assessed their credibility.METHODS:
We appraised systematic reviews and meta-analyses. For each meta-analysis, we considered the effect size, 95% confidence interval, the heterogeneity, small-study effects, P-value for excess significance and largest study significant, then we graded the evidence according to Assessment of Multiple Systematic Reviews and the GRADE assessment.RESULTS:
23 publications met the inclusion criteria (13 meta-analyses and 10 systematic reviews), which evaluated 24 environmental factors. Among observational studies, we identified 7 risk factors overweight/obesity [GERD/erosive esophagitis (EE)/GERD symptom], central adiposity [EE], smoking [GERD], alcohol [GERD/EE/non-erosive reflux disease (NERD)], NSAID [GERD], coffee [EE], Helicobacter pylori eradication [EE], and 1 protective factor physical activity [GERD], this was based on a suggestive evidence of credibility. Across intervention studies, we identified 1 risk factor-Helicobacter pylori eradication [GERD] and 1 protective factor-breathing exercises [GERD], evidence for both was low grade.CONCLUSIONS:
We found varying levels of evidence for different environmental factors of GERD. None of them was proven to be convincing or highly recommended.Key words
Full text:
1
Database:
MEDLINE
Main subject:
Gastroesophageal Reflux
Type of study:
Etiology_studies
/
Observational_studies
/
Prognostic_studies
/
Risk_factors_studies
/
Systematic_reviews
Language:
En
Journal:
Dig Liver Dis
Year:
2021
Type:
Article
Affiliation country:
China