Nearly one out of every six U.S. employees say they were discriminated against at work in the last year, with women more than twice as likely as men to claim bias over hiring and pay, according to a new poll.

The poll released Thursday by the Gallup Organization found that middle-aged women and minorities were more likely to report being victims. Out of the part-time and full-time workers interviewed by telephone, women were more than twice as likely to claim discrimination (22 percent) as men (9 percent).