Two: the New One

It's not your imagination; twins are everywhere. by Liza Mundy

July 9, 2007

When I was growing up in the 1970s, I did not know a single twin. My kids' school, on the other hand, is crawling with them. And that, increasingly, is the norm across the country. Julia Roberts and Marcia Cross are the tip of a very big iceberg — the biggest twins boom in American history.

  RATE THIS NOW!
+ DIGG

+ STUMBLE



In 2004, the most recent year for which government statistics are available, more twins — 132,000 — were born in the United States than ever before. And in cities, where women are more likely to wait until later to have babies and use fertility methods to conceive, the rate is even higher. The older the mother, the more likely she is to ovulate more than one egg at a time, and in vitro fertilization and fertility drugs increase the odds of a multiple birth. Recent studies have also suggested that factors such as folic acid, obesity and dairy products may be fueling the increase in twins.

Whatever the cause, twins have become normalized. Under ordinary conditions — which is to say, conditions that have prevailed through all of human history until this point — one out of every eighty births is a twin, but in this country, that number has risen to the point where one out of every thirty-three children born is a twin. Which means you probably either have twins yourself, or see them out in force on the sidewalks and at the playground.

But just because they're far more common than they used to be, doesn't mean twins have become any easier to deliver, or to raise.Just because they're far more common than they used to be, doesn't mean twins have become any easier to deliver, or to raise. A twins pregnancy is riskier than many realize. Babies born as twins are hospitalized twice as long as singletons, and their medical costs are three times as high over the first five years. Among twins, infant mortality rates are six times higher than that of singletons. On average, fifty percent of twins arrive premature, making them more susceptible to long-term problems such as developmental delays, vision disorders and cerebral palsy.

And there are risks to the mother. For a woman pregnant with twins, the risk of postpartum hemorrhage and postpartum infection doubles, from 4.7 percent to 9 percent. The risk of needing a blood transfusion or hysterectomy doubles. The risk of preeclampsia jumps from 4.4 percent to 10.3 percent, and the onset occurs earlier. "The human uterus was not made to carry more than ten pounds," estimates Mark Evans, a doctor who specializes in high-risk pregnancies. (The average twin weighs about 5 ½ pounds.)

And once the babies come home, the logistics become staggering. In some ways, what twins there were must have been easier for mothers to manage back in the 1960s, when it was socially permissible to stick them in the back seat and let them wallow on the vinyl seats untethered, and when there wasn't so much pressure to breastfeed, co-sleep and sling-carry. The rise in twins births has coincided with an obsessive, somewhat misleading emphasis on the importance of the first three years, during which, parents are told, they must do everything possible to achieve that all-important goal: attachment. And they still have to get the babies from one place to another.

Discuss this article (6)   |   PRINT THIS ARTICLE  |   EMAIL TO A FRIEND  |     RATE THIS NOW!
+ DIGG  |   + STUMBLE  |     |   + MY YAHOO  |   + GOOGLE  |   RSS
 

About the Author

author bio Liza Mundy is a staff writer for The Washington Post and the author of Everything Conceivable: How Assisted Reproduction Is Changing Men, Women, and the World

New This Week




What's New on Babble

Daily Poll

Are you getting the swine flu vaccine for your kids?