ENVIRONMENTAL FACTORS AND LIFE HISTORY OF THE INFERTILE MALES --PART1. PARENTS’ AGE, BIRTH RANK, AFFECTED SIBLINGS, AND CONSANGUINITY

摘要

Four hundreds and sixty-five infertile men with idiopathic spermatogenic failure were investigated as to their parental age at birth, birth rank, and percentage of consanguinity and affected siblings. Maternal age at birth showed no significant difference between the groups of azoospermia, oligozoospermia, normospermia and the general population. In fifty-two men with germ cell aplasia, the maternal age at birth showed no difference from the general population although some older age was expected as in Down's syndrome. Paternal age, birth rank, rate of consanguinity and affected siblings also showed no significant data.