A new survey says more Americans aren't going to the doctor's office because they can't afford it.

The latest Commonwealth Fund Biennial Health Insurance Survey finds that 80-million people didn't see a doctor or use other medical services last year because they couldn't afford the cost.

That's up from 75-million people in 2011, and 63-million ten years ago. Researchers were surprised to learn that 28-percent of working-age adults with what's considered good insurance passed on medical treatment because of the cost.