ReviewDiagnostics (Basel, Switzerland)2026
Prevalence and Etiopathogenic Profile of Oral Squamous Cell Carcinoma in Nonsmokers and Nondrinkers: Expanding Risk Determinants Beyond Tobacco Exposure.
Review in Diagnostics (Basel, Switzerland), 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Authors and funding
6 authors.
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Abstract
Oral squamous cell carcinoma (OSCC), comprising ~90% of oral malignancies, remains a major global health burden with rising incidence despite declining tobacco use. While tobacco and alcohol are classic dominant risk factors, a distinct subgroup of nonsmoking, nondrinking (NSND) patients is increasingly recognized, accounting for 15-35% of OSCC cases in many cohorts, particularly in developed countries. This emerging epidemic shows striking demographic patterns: strong female predominance (often 65-77% of cases), bimodal age distribution with peaks in young adults (<45 years) and elderly individuals (>70 years), and overrepresentation among non-Hispanic White and certain Asian populations. Unlike traditional habit-related OSCC, which favors the floor of the mouth in older males, NSND tumors predominantly arise on the lateral tongue, gingiva, and buccal mucosa. Etiopathogenesis extends far beyond conventional carcinogens and involves multifactorial mechanisms, including chronic mechanical irritation from dental factors, oral microbiome dysbiosis enriched with periodontal pathogens (e.g.,
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