Lung cancer is in a class by itself. It’s the biggest and baddest cancer out there — accounting for more diagnoses and deaths than breast, prostate and colon cancer combined.

But for women, lung cancer represents a unique health threat.

Lung cancer diagnoses in women have jumped six-fold over the past three decades, while in men the incidence has gone down.

Women tend to develop lung cancer at younger ages. And women are much more likely to get lung cancer despite never having smoked — a group that numbers about 25,000 a year. Female lung cancer patients who have never smoked outnumber men never-smokers by 3 to 1.