prevalence rate

So going back to the first question about the range in terms of prevalence rate.

When, in 1994, these and others questions were included, the prevalence rate rose to 7.4 percent.

The most affected group was black women, with a prevalence rate of 48%.

The prevalence rate drops down to 10% to 12% in people older than 50.

Women in the age group 25-29 are the worst affected with prevalence rates of up to 40 percent.

American Indians aren't the only ethnic group in the state with high prevalence rates.

As of 2007, the adult prevalence rate is estimated to be 2.10%.

As for 2007, the adult prevalence rate is estimated to be 1.50%.

This comes after two decades of increases in the overall prevalence rate.

Now it appears the prevalence rate is probably on the order of 1 in 200 children.