Lung cancer in women
Lung cancer strikes 900,000 men and 330,000 women yearly. Among men, smoking causes more than 80 per cent of lung cancer cases. In women, smoking is the cause of 45 per cent of all lung cancer worldwide, but more than 70 per cent in North America and Northern Europe. In both men and women, the incidence of lung cancer is low before age 40, and increases up to age 70 or 75.