A south-east Queensland maternity support program for Indigenous families has almost halved the odds of pre-term births, a result hailed by researchers as "quite extraordinary."

The Birthing in Our Community program aims to close the gap in maternal and infant health outcomes, and Brisbane mother of three Rebekah Hauiti says using the program ensured the health of her children.

Lead researcher Professor Sue Kildea said there’s a very good chance the program could produce the same results and help reduce pre-term Indigenous births across Australia, if it was rolled out in other locations.