Fernanda Weber Mello1, Gilberto Melo2, Júlia Jacoby Pasetto3, Carolina Amália Barcellos Silva4, Saman Warnakulasuriya5, Elena Riet Correa Rivero6. 1. Postgraduate Program in Dentistry, Federal University of Santa Catarina, Florianópolis, Santa Catarina, Brazil. fernanda.wmello@gmail.com. 2. Postgraduate Program in Dentistry, Federal University of Santa Catarina, Florianópolis, Santa Catarina, Brazil. 3. Dental School, Federal University of Santa Catarina, Florianópolis, Santa Catarina, Brazil. 4. Department of Morphology, Biology Center, Federal University of Santa Catarina, Florianópolis, Santa Catarina, Brazil. 5. Department of Oral Medicine, King's College London and WHO Collaborating Centre for Oral Cancer, London, UK. 6. Department of Pathology, Health Sciences Center, Federal University of Santa Catarina, Florianópolis, Santa Catarina, Brazil.
Abstract
OBJECTIVES: This systematic review (SR) aimed to summarise and critically appraise available evidence about the association between the synergistic consumption of alcohol and tobacco and the occurrence of oral squamous cell carcinoma (OSCC). MATERIALS AND METHODS: Observational studies investigating the association between the synergistic consumption of alcohol and tobacco and OSCC occurrence were included. Studies were selected in a two-phase process and searches were conducted on five main electronic databases, complemented by three grey literature databases. RESULTS: From 3260 records identified, 33 articles were included for qualitative analysis, of which 15 were included in the meta-analyses. Overall, the synergistic consumption was positively associated with the occurrence of OSCC (odds ratio [OR] = 5.37; 95% confidence interval [95%CI] = 3.54-8.14). Increased odds for OSCC occurrence were observed regarding the synergistic consumption of alcohol and smoked tobacco (OR = 4.74; 95%CI = 3.51-6.40), alcohol and smokeless tobacco (OR = 7.78; 95%CI = 2.86-21.14), and alcohol, smoked tobacco, and smokeless tobacco (OR = 16.17; 95%CI = 7.97-32.79). CONCLUSIONS: According to the results of this SR, the synergistic consumption of alcohol and tobacco (both smoked and smokeless) significantly increased the odds for the occurrence of OSCC. CLINICAL RELEVANCE: The knowledge provided by this SR may be useful for a better understanding of differences in the effect of synergistic consumption of alcohol and tobacco products in OSCC development. These data might aid healthcare authorities to develop measures for tobacco and alcohol control considering the needs of their population.
OBJECTIVES: This systematic review (SR) aimed to summarise and critically appraise available evidence about the association between the synergistic consumption of alcohol and tobacco and the occurrence of oral squamous cell carcinoma (OSCC). MATERIALS AND METHODS: Observational studies investigating the association between the synergistic consumption of alcohol and tobacco and OSCC occurrence were included. Studies were selected in a two-phase process and searches were conducted on five main electronic databases, complemented by three grey literature databases. RESULTS: From 3260 records identified, 33 articles were included for qualitative analysis, of which 15 were included in the meta-analyses. Overall, the synergistic consumption was positively associated with the occurrence of OSCC (odds ratio [OR] = 5.37; 95% confidence interval [95%CI] = 3.54-8.14). Increased odds for OSCC occurrence were observed regarding the synergistic consumption of alcohol and smoked tobacco (OR = 4.74; 95%CI = 3.51-6.40), alcohol and smokeless tobacco (OR = 7.78; 95%CI = 2.86-21.14), and alcohol, smoked tobacco, and smokeless tobacco (OR = 16.17; 95%CI = 7.97-32.79). CONCLUSIONS: According to the results of this SR, the synergistic consumption of alcohol and tobacco (both smoked and smokeless) significantly increased the odds for the occurrence of OSCC. CLINICAL RELEVANCE: The knowledge provided by this SR may be useful for a better understanding of differences in the effect of synergistic consumption of alcohol and tobacco products in OSCC development. These data might aid healthcare authorities to develop measures for tobacco and alcohol control considering the needs of their population.
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