Czeizel A
Helv Paediatr Acta. 1980 Mar;35(1):57-67.
957 of all the liveborn children in Budapest from 1962 to 1966 were operated for isolated congenital inguinal hernia until the age of 3 years, giving a point prevalence of 11.04 per 1000 livebirths. The sex ratio was 0.8892. 57% hernias occurred on the right, 26% on the left, and 17% on both sides. The occurrence of congenital inguinal hernia was significantly higher in infants born in colder winter months and in twinbirths. Babies with hernias had lower birthweights and shorter gestational ages. The role of potential teratogens could not be proved.
1962年至1966年期间，布达佩斯所有活产儿中有957例在3岁前接受了单纯先天性腹股沟疝手术，每1000例活产儿的点患病率为11.04。男女比例为0.8892。57%的疝气发生在右侧，26%在左侧，17%在双侧。先天性腹股沟疝在冬季较寒冷月份出生的婴儿和双胞胎中发生率明显更高。患有疝气的婴儿出生体重较低，孕周较短。潜在致畸剂的作用无法得到证实。
