New research finds that people who had radiation treatments for cancer as children are less likely than the general public or even their healthy siblings to get recommended screening tests.

Doctors say that less than half of the cancer survivors in their study received mammograms, colonoscopies or other screenings as often as advised. Some may just want to put cancer behind them. But many are not aware of what treatments they had or the risks they pose. Survivors of childhood cancer who got radiation face higher risk of second cancers.

The study was reported Monday at a cancer conference in Orlando.