An analysis of historical medical records found that men who were prenatally exposed during early gestation to the Dutch famine of 1944-1945 were 30 percent more likely to be overweight with a Body Mass Index of 25 or over at age 19, compared to a similar group not exposed to the famine. Professor L. H. Lumey at Columbia University Mailman School of Public Health led the study, which is published in the International Journal of Obesity. The study confirms evidence on the health risks of prenatal famine exposure, which also includes diabetes and schizophrenia.