Jakob O
Soz Praventivmed. 1979 Feb;24(1):21-7. doi: 10.1007/BF02083318.
To make statements about the evolution of suicide frequency, one has to analyse long periods. The Federal Bureau of Statistics disposes of data since 1876. When treating the statistics material of such as long period, changes in the "dark-numbers" have to be considered for they can simulate (false) tendencies. There are various reasons to assume that the dark-numbers today are smaller than at the end of the last and at the beginning of this century. A separated analysis according to age-groups brings more specific results for the size of the dark-number as well as its changes varies from age-group to age-group. In Switzerland the suicide rate of males above 30 years of age is low presently than at the begining of this century, whereas the suicide rate of males below 30 years (without regard to fluctuations) is practically the same. Since the Second World War, the suicide rate of females oscillates within a range of near-constancy. Prospective statements cannot be made. The calculated suicide rates since 1971 are only provisonal, for the basic population sizes are estimated.
要对自杀频率的演变进行阐述，就必须分析较长的时间段。联邦统计局自1876年起就有相关数据。在处理如此长时间段的统计资料时，必须考虑“隐匿数字”的变化，因为它们可能会模拟出（虚假的）趋势。有各种理由认为，如今的隐匿数字比上世纪末和本世纪初要小。按年龄组进行单独分析会得出更具体的结果，因为隐匿数字的规模及其变化在不同年龄组之间存在差异。在瑞士，目前30岁以上男性的自杀率低于本世纪初，而30岁以下男性的自杀率（不考虑波动情况）实际上保持不变。自第二次世界大战以来，女性的自杀率在一个近乎恒定的范围内波动。无法做出前瞻性的阐述。1971年以来计算出的自杀率只是暂定的，因为基本人口规模是估算出来的。
