The study was based on approximately 51,000 episodes of self-harm committed by some 31,000 individuals who were treated in hospital emergency rooms in three English cities—Derby, Manchester, and Oxford—from 2000 to 2007. It found that the rate of suicide attempts declined significantly in these regions over the years studied. Moreover, two key targets of the National Suicide Prevention Strategy—suicide attempts by young men and suicide attempts by self-poisoning—both showed decreases after the program was implemented.