A formulation of Durkheim’s theory of suicide is tested using data from a sample of 55 societies covered by Human Relations Area Files. The model predicts suicide rates in 5 “pure” conditions but only in 1 “mixed” condition. In addition, the rates differ in each of the 4 pure extreme conditions. It is concluded that “integration” may be more important than “regulation” in determining the suicide rate of societies, groups or social conditions.