Twin Births Spike In Pa

01.19.12 | Sarah Harnisch

Twin births have spike in Pennsylvania. The rate of moms giving birth to twins in the Keystone State has doubled in the past thirty years. Five other states can make the same claim. The growth in "twinning", according to Joyce Martin, one of the CDC's health researchers, is related to social and technological changes. Women are having babies later in life, and hormonal changes are playing a role. Improvements in fertility treatment are also impacting the number of twins. Nationwide, more then 865-thousand twins have been born between 1980 and 2010-- a 75-percent spike. In fact, if you're pregnant, you should know 1 in every 84 pregnances in the United States now results in twins.