Fisch H, Ikeguchi E F, Goluboff E T
Male Reproductive Center, Columbia-Presbyterian Medical Center, New York, NY 10028, USA.
Urology. 1996 Dec;48(6):909-11. doi: 10.1016/s0090-4295(96)00301-9.
Based on the premise that various human disease processes manifest differently depending on geography, we set out to determine whether sperm counts vary from different nations and different regions within the United States.
We reviewed the literature of all significant population-based studies that evaluated sperm counts from fertile or presumably fertile men from 1930 to the present.
We found that sperm counts did, in fact, vary greatly. Throughout the United States, average sperm counts ranged from a low of 48 million/cc in lowa to a high of 134 million/cc in New York, with multiple values in-between from Texas, Minnesota, Washington State, and California. Internationally, average sperm counts ranged from a low of 52.9 million/cc in Thailand to a high of 102.9 million/cc in France.
We conclude that sperm counts are subject to a wide range of variation among geographic locations.
基于各种人类疾病过程因地理位置不同而表现各异这一前提，我们着手确定美国不同州以及不同国家的精子计数是否存在差异。
我们回顾了1930年至今所有评估来自可育或可能可育男性精子计数的重要基于人群的研究文献。
我们发现精子计数实际上差异很大。在美国，平均精子计数范围从爱荷华州的低至4800万/立方厘米到纽约的高至1.34亿/立方厘米，德克萨斯州、明尼苏达州、华盛顿州和加利福尼亚州则有多个中间值。在国际上，平均精子计数范围从泰国的低至5290万/立方厘米到法国的高至1.029亿/立方厘米。
我们得出结论，精子计数在不同地理位置之间存在广泛差异。
