19009年死亡，纬度，阳光和维生素D

BACKGROUND: Since Vitamin D is known to be vital in regulating the immune system, and sunlight UV radiation exposure on the skin produces Vitamin D and UV intensity is highest nearest the equator, a study was done to examine the correlation between the latitude and COVID-19 fatality rates for国家。

方法： 八十八个国家是根据th选择的提供可靠数据的可能性。使用“世界计”网站的每个国家使用死亡率/百万美元，在死亡率和一个国家纬度之间进行了相关分析。

结果： 在较低的死亡率和较低的死亡率和一个较低的equimity和equimity之间的正面相关性是pearson pearson pearson pearson p pearson r = 0.40 p preds r = 0.40 p <0.40。 R平方为0.16，意味着国家纬度占国家死亡率差异的16％。 Evidence is presented suggesting a direct correlation between sunlight exposure and reduced mortality.

DISCUSSION: This study is the first to document a statistically significant correlation between a countrys latitude and its COVID-19 mortality and is consistent with other research regarding latitude, Vitamin D deficiency, and COVID-19 fatalities.这项研究的局限性是noted.

CONCLUSIONS: Further research is needed to confirm the correlation between latitude and COVID-19 fatalities, and to determine the optimum amounts of safe sunlight exposure and/or vitamin D oral supplementation to reduce COVID-19 fatalities in populations that are at high risk for vitamin D缺陷。