Year: 1989 Source: Annals of Clinical Psychiatry, v.1, no.4, (December 1989), p.247-250 SIEC No: 19920332

The rate of suicide in Japan using car exhaust was found to increase as car ownership became more common. This increase was halted when weak emission controls were introduced. Whether the increasing use of car exhaust for suicide led people to switch from other methods or whether it increased the overall rate of suicide was unclear from the data. These results indicate that suicide may be a function, at least in part, of the availability of a lethal method for suicide. (9 refs.)