Nations (national Tobacco Information Online System)

Acesse: Demographics and Health Effects Subcommittee tobacco.pdf 

Nations (national Tobacco Information Online System)

The adverse effects, including mortality, and probably addiction, are related to the factors such as the age of onset of use, the amount of tobacco which people are able to self-administer, and the toxicity of the products. Thus, for example, in populations in which few cigarettes are smoked per day and/or smoking did not begin until adulthood, or in which the tobacco epidemic is in its infancy (e.g., men and women in many developing countries or women in some developed countries), the observed risk of premature mortality may be substantially lower than in populations which begin smoking at an early age and smoke more heavily (cf Peto et al).