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Smoking To Blame For More Than Half Of Difference In Men's Mortality Risk Across Class Lines

Date:
July 14, 2006
Source:
University of Toronto
Summary:
The direct correlation between lower socioeconomic status and mortality risk is well known, but a new study by the University of Toronto and the University of Oxford is the first to determine that more than half the difference in risk of death between men in the highest social strata and those in the lowest can be attributed to smoking.

The direct correlation between lower socioeconomic status and mortality risk is well known, but a new study by the University of Toronto and the University of Oxford is the first to determine that more than half the difference in risk of death between men in the highest social strata and those in the lowest can be attributed to smoking.

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The study, which appears online in the Lancet's July 15 issue, looked at nearly 600,000 deaths in men aged 35 to 69 years in the U.K., Canada, U.S. and Poland.

"Across two continents, we find that smoking-related diseases account for well over half of the big difference in death rates between rich and poor," says study co-author Richard Peto, professor of medical statistics and epidemiology at the University of Oxford.

Researchers used an innovative, indirect method to estimate the contribution of smoking to mortality risk. The lung cancer deaths occurring in the different study groups were used as a guide to the respective proportions of deaths attributable to smoking in each group. Results were consistent across the five national populations studied.

Although mortality from smoking has recently started to decrease among men in Europe and North America, during the present decade smoking still accounts for about one-quarter of all male deaths in middle age. The study offers particular clarity to global and public health policy makers concerned with addressing the higher mortality rate among socially disadvantaged groups.

"These findings emphasize the importance of getting more smokers, especially in the lower socioeconomic bracket, to quit," says study co-author Professor Prabhat Jha of U of T's department of public health sciences, director of the Centre for Global Health Research at U of T and St. Michael's Hospital and Canada Research Chair in health and development.

"This means widespread cessation of smoking would do more than anything else to narrow the inequalities in health between rich and poor," says Jha.


Story Source:

The above story is based on materials provided by University of Toronto. Note: Materials may be edited for content and length.


Cite This Page:

University of Toronto. "Smoking To Blame For More Than Half Of Difference In Men's Mortality Risk Across Class Lines." ScienceDaily. ScienceDaily, 14 July 2006. <www.sciencedaily.com/releases/2006/07/060714082827.htm>.
University of Toronto. (2006, July 14). Smoking To Blame For More Than Half Of Difference In Men's Mortality Risk Across Class Lines. ScienceDaily. Retrieved December 22, 2014 from www.sciencedaily.com/releases/2006/07/060714082827.htm
University of Toronto. "Smoking To Blame For More Than Half Of Difference In Men's Mortality Risk Across Class Lines." ScienceDaily. www.sciencedaily.com/releases/2006/07/060714082827.htm (accessed December 22, 2014).

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