Entrican J H, Douglas A S
Scott Med J. 1979 Oct;24(4):273-8. doi: 10.1177/003693307902400405.
This study confirms previous reports of a seasonal variation in morbidity and mortality from coronary and cerebral arterial disease; these disorders are much less common in summer (e.g. July and August) than in winter (e.g. December and January). In coronary disease the shape of the curve for the annual morbidity is different from that for annual mortality and possible reasons for this are discussed. A similar circannual rhythm has been shown for venous thrombo-embolic disease.
本研究证实了先前有关冠状动脉疾病和脑动脉疾病发病率及死亡率存在季节性变化的报道；这些疾病在夏季（如7月和8月）比在冬季（如12月和1月）少见得多。在冠状动脉疾病中，年度发病率曲线的形状与年度死亡率曲线不同，并对其可能的原因进行了讨论。静脉血栓栓塞性疾病也显示出类似的年节律。
