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Published in: BMC Medicine 1/2015

Open Access 01-12-2015 | Research article

Global burden of disease due to smokeless tobacco consumption in adults: analysis of data from 113 countries

Authors: Kamran Siddiqi, Sarwat Shah, Syed Muslim Abbas, Aishwarya Vidyasagaran, Mohammed Jawad, Omara Dogar, Aziz Sheikh

Published in: BMC Medicine | Issue 1/2015

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Abstract

Background

Smokeless tobacco is consumed in most countries in the world. In view of its widespread use and increasing awareness of the associated risks, there is a need for a detailed assessment of its impact on health. We present the first global estimates of the burden of disease due to consumption of smokeless tobacco by adults.

Methods

The burden attributable to smokeless tobacco use in adults was estimated as a proportion of the disability-adjusted life-years (DALYs) lost and deaths reported in the 2010 Global Burden of Disease study. We used the comparative risk assessment method, which evaluates changes in population health that result from modifying a population’s exposure to a risk factor. Population exposure was extrapolated from country-specific prevalence of smokeless tobacco consumption, and changes in population health were estimated using disease-specific risk estimates (relative risks/odds ratios) associated with it. Country-specific prevalence estimates were obtained through systematically searching for all relevant studies. Disease-specific risks were estimated by conducting systematic reviews and meta-analyses based on epidemiological studies.

Results

We found adult smokeless tobacco consumption figures for 115 countries and estimated burden of disease figures for 113 of these countries. Our estimates indicate that in 2010, smokeless tobacco use led to 1.7 million DALYs lost and 62,283 deaths due to cancers of mouth, pharynx and oesophagus and, based on data from the benchmark 52 country INTERHEART study, 4.7 million DALYs lost and 204,309 deaths from ischaemic heart disease. Over 85 % of this burden was in South-East Asia.

Conclusions

Smokeless tobacco results in considerable, potentially preventable, global morbidity and mortality from cancer; estimates in relation to ischaemic heart disease need to be interpreted with more caution, but nonetheless suggest that the likely burden of disease is also substantial. The World Health Organization needs to consider incorporating regulation of smokeless tobacco into its Framework Convention for Tobacco Control.
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Metadata
Title
Global burden of disease due to smokeless tobacco consumption in adults: analysis of data from 113 countries
Authors
Kamran Siddiqi
Sarwat Shah
Syed Muslim Abbas
Aishwarya Vidyasagaran
Mohammed Jawad
Omara Dogar
Aziz Sheikh
Publication date
01-12-2015
Publisher
BioMed Central
Published in
BMC Medicine / Issue 1/2015
Electronic ISSN: 1741-7015
DOI
https://doi.org/10.1186/s12916-015-0424-2

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