An Overview of the Effects of Age on Fertility in Women
by Don Rieger, PhD
Vice Preisdent, Research and Development, LifeGlobal LLC
For a variety of social and economic reasons, women (and couples) are putting off having babies until they are in their mid-thirties, or later. This trend is common to most industrialized countries. In the United States, the average maternal age at first birth increased from 21.4 to 24.9 years of age from 1970 to 2000. Overall, birth rates in the United States decreased from 1970 to 1980, but since then, the birth rates for women over 30 years of age have increased significantly.