Bovet J, Spagnoli J, Sudan C
Département universitaire de psychiatrie d'adultes (DUPA), Lausanne.
Soz Praventivmed. 1997;42(3):155-61. doi: 10.1007/BF01300566.
The authors study the date of death in relationship, in the annual cycle, to date of birth of every person who died of natural causes in Switzerland between 1st January, 1969 and 31st December, 1992 (N = 12,275,033). They highlight a maximal mortality (17% over expected) on the actual anniversary of birth with the entire population, a slightly lower figure being found under 80 years of age, higher over this age. They tie this phenomenon to the classical group of "anniversary reactions", in which problems of identity probably play a role. An uncertainty hangs nevertheless over the value of these findings, which are not confirmed by any published material, and even denied by some.
作者研究了1969年1月1日至1992年12月31日期间瑞士所有自然死亡者的死亡日期与年度周期中出生日期的关系（N = 12,275,033）。他们发现，总体人群在实际生日当天死亡率最高（比预期高17%），80岁以下人群的这一数字略低，80岁以上人群则更高。他们将这一现象与经典的“周年反应”联系起来，身份认同问题可能在其中起了作用。然而，这些发现的价值仍存在不确定性，没有任何已发表的材料证实这些发现，甚至有些材料还予以否认。
