More than one-quarter of U.S. women with two or more children have children with more than one man, according to a new study, the first national survey of "multiple partner fertility."
The study found that, overall, 28% of women with two or more children had children by different men. The rate was 59% among African American women with two or more children compared with 35% among Hispanic women and 22% among white women, said the author of the study Cassandra Dorius, a demographer at the University of Michigan Institute for Social Research.
Dorius presented her study Friday at the annual meeting of the Population Assn. of America.
The study was unique because it analyzed data from almost 4,000 women who were interviewed more than 20 times over a 27-year period. The women had completed their child-bearing years by the time of the final interview.
Dorius found that having children by more than one man is a phenomenon that impacts all racial, income and educational sub-groups. It is tied to marriage and divorce as well as single parenthood.