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Gastroesophageal reflux disease and upper aerodigestive tract cancer risk: A meta-analysis of site-specific associations

J. Huang, Nicolas Jo, Garrett Forman, Tonya Aaron, Luke van Leeuwen, Nicholas DiStefano, Laura Wild, Aarshvi Bhatt et al.

Journal of Clinical Oncology, 2025

14 participants

Abstract

e18106

Background:

Gastroesophageal reflux disease (GERD), which affects approximately 20% of the U.S. population, has been implicated as a potential risk factor for upper aerodigestive tract (UADT) cancers, such as laryngeal cancers. This systematic review and meta-analysis aimed to evaluate the association between GERD and UADT cancers.

Methods:

A systematic review and meta-analysis were conducted to assess the relationship between GERD and UADT cancers. Random-effects models were used to calculate pooled relative risks (RRs) and 95% confidence intervals (CIs) for site-specific associations.

Results:

A total of 17 studies were included, including 12 case control studies and 5 cohort studies. Meta-analysis revealed a significant association between GERD and laryngeal cancer (RR = 1.65, 95% CI = 1.19–2.31, n = 14). Subgroup analysis of laryngeal cancer studies demonstrated a stronger association in cohort studies (RR = 2.41, 95% CI = 1.21–4.80, n = 3) compared to case-control studies (RR = 1.50, 95% CI = 1.10–2.06, n = 11). Geographic differences were also observed, with studies in the U.S. showing a significant association (RR = 1.65, 95% CI = 1.23–2.23, n = 8) compared to those conducted outside the U.S. (RR = 1.70, 95% CI = 0.86–3.36, n = 6). No significant associations were observed for pharyngeal cancer (RR = 1.40, CI = 0.74 –2.67), oropharyngeal cancer (RR = 1.91, 95% CI = 0.30–12.33, n = 3), hypopharyngeal cancer (RR = 2.05, 95% CI = 0.25–16.54, n = 3), or esophageal…

How strong is the evidence?

Evidence Hub reads this as a meta-analysis. Its evidence level is 1 of 5 (Highest · pooled evidence). Pooled evidence from several studies sits at the top of the evidence pyramid. Reported size: 14 participants or records.

How the five levels of evidence work. The level is assigned automatically from the abstract and can be wrong, so check the paper.

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