The death risk from smoking may be much higher than previously thought – tobacco kills up to two in every three smokers not one in every two, data from a large study suggests.
The study tracked more than 200,000 Australian smokers and non-smokers above the age of 45 over six years.
Mortality risk went up with cigarette use, BMC Medicine reports.
Smoking 10 cigarettes a day doubled the risk, while 20-a-day smokers were four to five times more likely to die.
It’s a real concern that the devastation caused by smoking may be even greater than we previously thought
George Butterworth, Cancer Research UK tobacco policy manager
Although someone who smokes could lead a long life, their habit makes this less likely.
Smoking increases the risk of a multitude of health problems, including heart disease and cancer.
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