The objective of this study was to identify the prevalence of and factors associated with the practice of modern contraceptive methods among married women aged 15 - 49 years in Ninh Hoa district, Khanh Hoa province. Design: Cross-sectional study by using survey questionnaires to interview 768 currently married women from 15 - 49 in Ninh Hoa District from 03/2008 to 06/2008.