Patterns of mortality from cardiac-cerebral vascular disease and influences from the cosmos
| Autor: | Chaomin Wan, Shuting Cheng, Germaine Cornelissen, Zhou Jiang, Wei Zeng, Zhengrong Wang, Franz Halberg, Xian Liang, Yuhui Wang |
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| Rok vydání: | 2014 |
| Předmět: | |
| Zdroj: | Biological Rhythm Research. 45:579-589 |
| ISSN: | 1744-4179 0929-1016 |
| DOI: | 10.1080/09291016.2013.876189 |
| Popis: | The aim of this study is to determine the patterns of mortality from cardiac-cerebral vascular disease (CCVD) and how they relate to cosmophysical factors over a six-year span. The daily number of deaths recorded in Chengdu over 2192 consecutive days (2007–2012), together with several factors related to solar activity (SA), geomagnetic activity (GMA), and the interplanetary magnetic field, were analyzed by the extended cosinor to estimate the parameters of major cycles characterizing each variable. Estimates of their respective periods with a measure of uncertainty serve to find coperiodisms (i.e. shared rhythms). The results show that mortality of cardiovascular diseases (CVD) and CCVD on days of GMA in quiet level was relatively higher on days of GMA in unsettled level. Whereas mortality data are characterized by a one-year synchronized component, most GMA and SA indices have periods differing from precisely one year. A half-year cycle is shared by almost all SA, GMA, and mortality variables with 95% co... |
| Databáze: | OpenAIRE |
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