The biomathematics/biostatistics division provides statistical and mathematical modeling help in clinical and basic science research inside as well as outside Pediatrics. The division aims to be involved with researchers from the outset, helping to design studies so as to have adequate statistical power to answer the posed questions and test the stated hypotheses, and analyzing the collected data with appropriate statistical procedures. Within Pediatrics, the division collaborates actively with Neonatology and with Gastroenterology and Nutrition. Outside the department, work is ongoing with Preventive Medicine and Nutrition in the Department of Medicine, with the Institute of Human Nutrition, with the Irving Center for Clinical Research, and with investigators outside Columbia University.