The development of pathological gambling in Sweden.

The development and the social, psychological and cultural conditions of pathological gambling reported by 42 interviewed pathological gamblers were compared with data from 63 pathological gamblers identified by case-finding. The two studies gave similar results. Gambling on horse races, roulette and bingo were the only types showing a progressive increase in involvement over time. When gambling heavily 40% of the pathological gamblers regularily experienced a state of altered consciousness. When abstaining from gambling withdrawal-like symptoms were experienced by a third. Fifty-two percent reported at least one family member often gambling. Pathological gambling appears to be a secret behaviour, although there are collective features in its development.