The new study found that 23 percent of victims between 16 and 45 tested positive for cocaine.

When this whole testing business began two years ago, 5 to 7 percent of the players tested positive.

A control study of 247 crew members who had not flown with her found that 13, or 5.3 percent, tested positive.

Just 3.8 percent of the control group tested positive for the proteins.

Between 5 and 7 percent of the players tested positive in 2003, which triggered more stringent testing.

Of the age 15-49 population, 0.17 percent have tested positive.

There, 85.2 percent of the students tested performed at or above the national average for their grade level.

Nine months later, 86 percent were testing at grade level.

But of the 99,900 healthy people, 1 percent or 999 will also test positive - falsely.

Moreover, up to 3 percent of donors in some areas may test positive for Lyme disease.