Association between serum γ-Glutamyltransferase and the risk of cervical cancer: Evidence from the national health and nutrition examination survey

Elevated serum GGT levels are associated with a heightened risk of cervical cancer even in HPV-negative patients. Although this association is partly mediated by tobacco exposure, GGT may still play a role in cervical cancer via nontobacco routes. The potential application of GGT as an auxiliary biomarker requires further validation in prospective studies.