Lung cancer surpasses breast cancer as the number one cause of cancer mortality in women. 
Lung cancer mortality rates for men are decreasing while the rates for women are increasing. 
Lung cancer is the leading cause of cancer deaths in both developed and developing countries.
Lung cancer incidence today reflects the smoking patterns seen 20 to 30 years ago.
80-90% of lung cancer cases are attributed to smoking. 
More women than men with lung cancer are non-smokers
Women have more difficulty than men in quitting smoking, and have higher relapse rates.
In 1999 28% of 15-19 year olds smoked, by 2003 this had decreased to 18%. More girls (20%) smoked than boys (17%).
Young adults (20-24 year olds) have shown a slight decrease in smoking rates but continue to have the highest rates of smoking of all age groups at 28% (23% men vs 19% women).
1. Alexiou, C., Onyeaka, P., Beggs, D., Akar, R., Beggs, L., Salama, F.D., Duffy, J.P., Morgan, W.E. (2002) Do women live longer following resection for carcinoma? European Journal of Cardio-Thoracic Surgery, 21:319-325.