This Statistical Brief presents data from the Healthcare Cost and Utilization Project (HCUP) Nationwide Inpatient Sample (NIS) and State Inpatient Databases (SID). The analyses focus on national rates of obstetric trauma across age and racial/ethnic groups as well as trends in obstetric trauma over time. In addition, we provide comparisons for instrument-assisted deliveries versus deliveries without instrumentation. All differences between estimates that are noted in the text are statistically significant at the 0.05 or less probability level.