Newborn Jaundice, Healthline, Written by Danielle Moores, Medically Reviewed by George Krucik, MD, published on July 16, 2012.

http://www.healthline.com/health/newborn-jaundice#Overview1

"Babies at highest risk for developing newborn jaundice are:

•"Premature babies, born before 38 weeks’ gestation.

•"Babies who are not getting enough breast milk, either because they are having a hard time feeding or because their mothers’ milk is not in yet.

•"Babies whose blood type is not compatible with their mothers’—this may cause a buildup of antibodies that destroy babies’ red blood cells and cause a sudden rise in bilirubin levels."

I know this is not a review article in a professional publication which is our goal standard.  But I often like to start with more of a middlebrow source.  I feel I'm much less likely to make a mistake summarizing that source than a medical journal.