Current tests are geared to spot problems and help connect troops with the proper medical care when they get home.
But when returning troops took the screening test anonymously they were between twice and four times as likely to report mental health problems and to say they needed help.
Authors of the study in the Archives of General Psychiatry say this suggests that doctors need to continue to work and to seek different ways to encourage troops to get help and understand that getting treatment is a strength not a weakness.
