Non-smoking and Non-drinking Oral Cancer Patients Are at Higher Risk of Second Primary Tumours.

ABSTRACT:

Objectives

This study aimed to explore differences in demographics, tumour characteristics and outcomes in oral squamous cell carcinoma (OSCC) patients with a history of non-smoking, non-drinking (NSND) versus smoking and/or drinking (SD).

Materials and methods

Newly diagnosed OSCC patients undergoing curative surgical treatment were prospectively included in OncoLifeS, a data biobank. Cox regression analysis was performed yielding hazard ratios (HRs) and 95% confidence intervals (95%CIs).

Results

185 patients were included, and 32.4% of patients were NSND; this group represented an older (69 vs. 64.4 years, p < 0.01) and more female-dominated (66.7% vs. 44.5%, p = 0.02) population. NSND patients had more tongue tumours (68.3% vs. 46.4%, p < 0.01) and few floor-of-mou

SUBMITTER: van der Aa PJP 

PROVIDER: S-EPMC12319359 | biostudies-literature | 2025 Jul

REPOSITORIES: biostudies-literature