Changes in the sexual life of Czechoslovak women born between 1911 and 1958.

In the course of 26 years the authors have collected sexual history data via interview on 1779 gynecological patients, aged 20 to 40. All had been married for at least 1 year. None sought consultation for sexological difficulties. According to the year of birth they were divided into five subgroups from 1911-1920 up to 1951-1958. During that time the average age of women at first sexual intercourse decreased from 20.75 years to less than 18 years. The percentage of orgastic women grew from 31% to 79%, and high coital activity in marriage rose from 40% to 86%. There was a decreasing number of women who came from a family of more than six children. The percentage of women who had secondary or college education increased. A significant acceleration of menarche was found only in the subgroup of women born after 1950.