Forty-six percent, or 128 cases, involved instances in which the children were taken from health care locations -- hospitals, for instance. Forty percent, or 112 cases, involved children taken from homes. Of the total 278 cases, children were returned home safely in 266 instances.
"The typical profile of the abductor of an infant is a woman, usually an emotionally disturbed woman who has lost a child or wants a child for some reason," Allen told ABC News.
Lisa has blue eyes, blonde hair, is 30 inches long and weighs between 26 and 30 pounds. She was last seen wearing purple shorts and a purple shirt with white kittens on it. She has two bottom teeth, a small bug bite under her left ear and a beauty mark on her right outer thigh. She also has a cold with a cough.
Anyone with information on Lisa's disappearance should call the Kansas City Police Department hotline at 816-474-TIPS.
ABC News' Dan Harris and Michael S. James contributed to this report.