Data on 9235 persons who had attempted suicide & been admitted to hospital over an 8 year period showed that a female/male ratio of 4:1 in young subjects gradually decreased with age. More than 1/2 the attempts were made by people under age 24, the same proportion was unmarried. Attempts occurred mainly after 2 pm. with maximum frequency between 8 pm. and midnight. The smallest number was on Saturdays. There was a slight seasonal variation, with the highest number in March & lowest in August.