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Prevalence of tobacco consumption
is reported by the World Health Organization (WHO), which focuses on smoking (not smokeless chewing tobacco) due to reported data limitations.Smoking has therefore been studied more extensively than any other form of consumption.
Generally men smoke five times higher than women, however the gender gap declines with younger age. In developed countries smoking rates for men have peaked and have begun to decline, however for women it is increasing.
Smoking prevalence has changed little since the mid-1990s. In Western countries, smoking is more prevalent among populations with mental health problems, with alcohol and drug problems, among criminals, and among the homeless.
In 2002, about 20% of young teens (13–15) smoke worldwide. 80,000 to 100,000 children begin smoking every day. Half of those who begin smoking in adolescent years are projected to go on to smoke for 15 to 20 years.
The World Health Organization (WHO) says that "Much of the disease burden and premature mortality attributable to tobacco use disproportionately affect the poor".
Of the 1.22 billion smokers, 1 billion of them live in developing countries. Rates of smoking have leveled off or declined in the developed world.
In the developing world, tobacco consumption is rising by 3.4% per year as of 2002;however, this figure could just be as high as the population growth.
The WHO in 2004 projected 58.8 million deaths to occur globally, from which 5.4 million are tobacco-attributed, and 4.9 million as of 2007. As of 2002, 70% of the deaths are in developing countries.
It is predicted that 1.5 to 1.9 billion people will be smokers in 2025.
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