Intensive gamblers on German-style slot-machines.

Results of German-style slot-machine gambling are reported, stemming from seven individual surveys in representatively sampled households (N=7,643). The aim of the inquiry was the reexamination of studies of the number of gamblers in the population together with gambling hours spent per week by active gamblers. The results are largely identical with already known data. Of persons of voting age or older, 10.2% are active gamblers (4.6 million; having gambled at least once within the last 3 months). Of the active gamblers 0.7% are intensive gamblers (5 hours and more per week). These persons number approximately 32,000 in the Federal Republic of Germany, or from 12,000 to 71,000 (95% confidence interval). In addition to the frequency distributions, interactions with socio-demographic characteristics were examined, and an estimate was made for the prevalence of intensive gamblers with severe stress.