Back to Search
Start Over
Age at start of using tobacco on the risk of head and neck cancer: Pooled analysis in the International Head and Neck Cancer Epidemiology Consortium (INHANCE).
- Source :
-
Cancer epidemiology [Cancer Epidemiol] 2019 Dec; Vol. 63, pp. 101615. Date of Electronic Publication: 2019 Oct 03. - Publication Year :
- 2019
-
Abstract
- Background: Tobacco use is a well-established risk factor for head and neck cancer (HNC). However, less is known about the potential impact of exposure to tobacco at an early age on HNC risk.<br />Methods: We analyzed individual-level data on ever tobacco smokers from 27 case-control studies (17,146 HNC cases and 17,449 controls) in the International Head and Neck Cancer Epidemiology (INHANCE) consortium. Adjusted odds ratios (ORs) and 95% confidence intervals (CIs) were estimated using random-effects logistic regression models.<br />Results: Without adjusting for tobacco packyears, we observed that younger age at starting tobacco use was associated with an increased HNC risk for ever smokers (OR <subscript><10 years vs. ≥30 years</subscript> : 1.64, 95% CI: 1.35, 1.97). However, the observed association between age at starting tobacco use and HNC risk became null after adjusting for tobacco packyears (OR <subscript><10 years vs. ≥30 years</subscript> : 0.97, 95% CI: 0.80, 1.19). In the stratified analyses on HNC subsites by tobacco packyears or years since quitting, no difference in the association between age at start and HNC risk was observed.<br />Conclusions: Results from this pooled analysis suggest that increased HNC risks observed with earlier age at starting tobacco smoking are largely due to longer duration and higher cumulative tobacco exposures.<br /> (Copyright © 2019 Elsevier Ltd. All rights reserved.)
Details
- Language :
- English
- ISSN :
- 1877-783X
- Volume :
- 63
- Database :
- MEDLINE
- Journal :
- Cancer epidemiology
- Publication Type :
- Academic Journal
- Accession number :
- 31586822
- Full Text :
- https://doi.org/10.1016/j.canep.2019.101615