Developed more than 40 years ago by Dr. David Olds, Professor of Pediatrics, Psychiatry, Preventive Medicine and Nursing at the University of Colorado, Denver, Nurse-Family Partnership (NFP) involves nurses visiting young, low-income, first-time mothers in their homes, roughly twice a month. These home visits start during pregnancy and continue until children reach their second birthday. This program has now been helping US families for more than 40 years.