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Re-analysis of cigarettes confirms tobacco companies increased addictive nicotine 11 percent

A re-analysis of nicotine yield from major brand name cigarettes sold in Mass. from 1997 to 2005 has confirmed that manufacturers steadily increased the levels of this addictive agent. Increases in smoke nicotine yield per cigarette averaged 1.6 percent each year or about 11 percent over a seven-year period (1998-2005). Harvard School of Public Health researchers found manufacturers accomplished the increase not only by intensifying nicotine concentration but also by modifying design features to increase the number of puffs per cigarette.

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