Bostofte E, Serup J, Rebbe H
Int J Fertil. 1983;28(2):91-5.
The semen analysis of 1,077 men examined in 1952 was compared with the semen analysis of 1,000 men examined in 1972 in order to assess if fertility in Danish men has declined during the period. The men on both occasions were examined because of a fertility problem. In 1952 6.2% of the men had azoospermia compared with 3.9% in 1972 (P less than 0.05). Between 1952 and 1972 there was a fall in sperm count (P less than 0.01, median 73.4, and 54.5 mill/ml), a deterioration in spermatozoa motility (P less than 0.001), an increase in number of abnormal spermatozoa (P less than 0.01, median 26.0%, and 44.8%), and a deterioration in fertility class according to the Hammen system (P less than 0.001). Semen volume and number of immobile spermatozoa did not change. This study of Danish men, like studies from other industrialized countries, indicates a fall in semen quality and male fertility since the early fifties.
对1952年接受检查的1077名男性的精液分析结果与1972年接受检查的1000名男性的精液分析结果进行了比较，以评估丹麦男性的生育能力在此期间是否有所下降。这两次接受检查的男性均因生育问题前来就医。1952年，6.2%的男性无精子症，而1972年这一比例为3.9%（P<0.05）。1952年至1972年间，精子数量下降（P<0.01，中位数分别为73.4和54.5百万/毫升），精子活力恶化（P<0.001），异常精子数量增加（P<0.01，中位数分别为26.0%和44.8%），根据哈门系统划分的生育等级恶化（P<0.001）。精液体积和不活动精子数量没有变化。这项针对丹麦男性的研究，与其他工业化国家的研究一样，表明自五十年代初以来精液质量和男性生育能力有所下降。
