Changing attitudes toward the timing of first births.

Looks at the relationship between changing attitudes toward timing of 1st births among US women and the later ages at which women are actually having children. Among currently married white American women, there has been a decided shift upward in the age which women believe ideal to initiate childbearing, since 1970. This increase has occurred among women of all religions and of varying educational levels. Data from the 1970 and 1975 National Fertility Studies were used.