success rates

Is the traffic outside affecting your chances of having a baby?

Living near a highway and IVF pregnancy rates: Princeton IVF blog
Women who live in high traffic areas are more likely to miscarry

Living in a high traffic area may hurt your chances for success with IVF

Research from Harvard presented at the annual meeting of the American Society for Reproductive Medicine suggests that women with a higher exposure to automotive traffic have lower IVF success rates than other women.

The researchers looked at 660 IVF cycles done over a 14 year period and compared their success rates to  how far they lived from a class A roadway. A class A roadway means an interstate, state or US highway. 

Women who lived more than a kilometer (0.6 miles) from a major roadway were 70% more likely to have a baby than those who lived within 200 meters (about 2 football fields) of a major roadway.

Interestingly, both groups of patients had similar pregnancy rates, but the those who live closed to the highway were more likely to miscarry.

Does this mean moving to a low traffic area will improve your chances  of having a baby?

Not necessarily. It does show what we already know, that the environment we live in and the air we breathe plays a role in reproduction, as it does in other aspects of health.

 

Can having a miscarriage increase your chances of having a baby?

Miscarriage after IVF may mean a better chance for future baby

An unsuccessful IVF cycle can be downright devastating to couples going through fertility treatments, particularly when the cycle results in a miscarriage. Between the guilt, the disappointment and the "if I only had's," many couples leave the experience totally devastated.  But are those concerns really warranted?

Probably not.

Fertility specialists have known for years that women who miscarry, are actually more likely to have a baby, even though most patients are a understandably somewhat skeptical about this.

To look further into this fertility specialists at the University of Aberdeen in Scotland looked at well over 100,000 IVF treatment cycles performed between 1999 and 2008. They were particularly interested in women who had a first cycle at that was unsuccessful, whether that was there was a miscarriage or no pregnancy at all. What they found was not surprising considering what we already know.

Women who had miscarried had a higher 49% chance of livebirth in the subsequent IVF cycle as compared to only a 30.1% chance had the first cycle not resulted in a pregnancy.

So, what does this all mean? 

  • Don't be in a rush to give up. Lots of women conceive on subsequent cycles.
  • Having a miscarriage from IVF, and likely from other treatments, means you are more likely to have a baby, not less likely.