Gass R, Wieltschnig E
Soz Praventivmed. 1976 Jul-Aug;21(4):145-6. doi: 10.1007/BF01994465.
Age standardized mortality from coronary heart disease was found to be higher in the German speaking parts of Switzerland than in the French speaking parts. Mortality from other diseases of the heart does not show a contrary gradient. The same pattern was confirmed among a cohort of Swiss physicians, observed over a 18-year period. Differences in smoking habits cannot explain the differential mortality rates.
研究发现,瑞士讲德语地区的冠心病年龄标准化死亡率高于讲法语地区。其他心脏病的死亡率并未呈现相反的梯度变化。在一项对瑞士医生进行了18年观察的队列研究中,也证实了同样的模式。吸烟习惯的差异无法解释死亡率的差异。