No program radiological examination does not allow proper identification of early lung cancer caused by smoking. Early symptoms (chronic cough, bloody sputum, weight loss) occur only when the damage cancer has reached an advanced stage of development. Often it is too late.
Not all smokers die from cancer. But not everyone smokes in the same way. Smoking inside the very first thirty minutes after awakening dramatically increases the risk of cancer.
A person can be identified, which in the general population of smokers are more at risk of cancer? An encouraging step has been made in this area by a U.S. team. A team led by Professor Joshua E. Muscat (University of Pennsylvania) had already taken a first step in 2011, when presented two studies published in the journal "Cancer". It explained that smokers who light the first cigarette within minutes after waking, compared with others have an increased risk of greater mass to be victims of cancer or lung cancer called "head and neck".
Their analysis of "lung cancer" was included 4775 cases and 2835 lung cancer cases controlled. All volunteers were regular smokers and drank an equivalent amount of tobacco. Compared with individuals who smoked more than an hour after waking, those who drank between 31 and 60 minutes after waking were 1.31 times more likely to develop lung cancer. While they drank their first cigarette at 30 minutes after waking were 1.79 times more risk.
Their analysis of head and neck cancer has affected 1,055 cancer cases. People who smoke between 31 and 60 minutes after waking were 1.42 earlier times more likely to develop this type of cancer, while those who light their cigarette in the first half hour are 1:59 times more at risk.
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