However, another study at the same time found a rate of 1 per 10,000.
Earlier studies had found a rate of less than 4%.
Most studies on immigrants have found higher rates of crime.
Earlier studies have found high rates of depression among nursing home residents.
In the past, small studies have found much higher rates in some areas.
A survey of college students found a rate of 4%.
Researchers found significantly increased rates of all cancers among patients taking the drugs.
The investigators found similar rates in most of the states surveyed, with two exceptions.
Other studies, he noted, had found high rates of depression among adult battered women.
But studies conducted by other researchers have found rates as high as 43 percent.