CHICAGO -- Want to know your chances of dying in the next 10 years? Here are some bad signs: getting winded walking several blocks, smoking, and having trouble pushing a chair across the room.That's according to a "mortality index" developed by San Francisco researchers for people older than 50. The test scores may satisfy people's morbid curiosity, but the researchers say their 12-item index is mostly for use by doctors. It can help them decide whether costly health screenings or medical procedures are worth the risk for patients unlikely to live 10 more years.It's best to take the test with a doctor, who can discuss what the score means in the context of patients' own medical history, the study authors say.The index "wasn't meant as guidance about how to alter your lifestyle," said lead author Dr. Marisa Cruz of the University of California, San Francisco.The 12 items on the index are assigned points; fewer total points means better odds.Men automatically get 2 points. In addition to that, men and women ages 60 to 64 get 1 point; ages 70 to 74 get 3 points; and 85 or over get 7 points.Two points each: a current or previous cancer diagnosis, excluding minor skin cancers; lung disease limiting activity or requiring oxygen; heart failure; smoking; difficulty bathing; difficulty managing money because of health or memory problem; difficulty walking several blocks.One point each: diabetes or high blood sugar; difficulty pushing large objects, such as a heavy chair; being thin or normal weight.The highest, or worst, score is a 26, with a 95 percent chance of dying within 10 years. To get that, you'd have to be a man at least 85 years old with all the above conditions.