MOST conducts a number of in-house research studies on a variety of issues related to higher-order multiple births.   To learn about MOST research and respondent privacy, please see MOST's Privacy Policy.

For additional information about any of the MOST research surveys or to request specific statistics from these databases, see our Research Study page or contact the MOST office.

NOTICE: MOST provides these statistics for informational purposes only, and cautions visitors not to use data to make treatment decisions without the approval of a qualified health care provider.

Read the June 2005 press release about MOST research

• Statistics on the odds of having multiples such as:

The odds of spontaneous triplets

The odds of identical triplets

The odds of spontaneous quadruplets

The odds of identical quadruplets

And much more

 

• Current study summaries on multiple and preemie research

• Research on loss in multiple births

• Premature infant research

*The MOST Medical Birth and Subsequent Pregnancy surveys are both ongoing studies in which families can still participate.

Updated 2/4/09