Statistics show that male smokers are 22 times more likely to develop lung cancer than non-smokers, while female smokers are only 12 times more likely to do so.
根據調查，一般男性吸煙者得肺癌的機率較不吸煙者高二十二倍；女性吸煙者得肺癌的機率比不吸煙者高十二倍。