Parents-to-be should be made aware (but not alarmed) -- an Australian retrospective study concludes twins who result from ART (as opposed to unassisted conception) are at greater risk for health outcomes such as preterm birth, low birth weight, and death.
The researchers looked at all twins born in Western Australia from 1994 to 2000. The double difference in risk rates is specific to "spontaneously conceived twins of unlike sex" -- when compared against all spontaneously conceived twins, including identicals, the risks were similar.
The question of 'why' is the mystery. Michele Hansen of Perth's Telethon Institute for Child Health Research, study author, proposes that the things that are causing the parents' infertility and/or components of the ART procedure may be to blame. She also notes that the hyper-vigilance of new, formerly-infertile parents may contribute to increased incidence of hospitalizations in the baby's earliest years.
Fertility Treatment Twins More at Risk for Hospitalizations - Forbes.com




