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To quantify drive distances to hospital obstetric services and advanced neonatal care and to examine such disparities by residential rurality and insurance type. Data for all-payer maternal childbirth hospitalizations in 2002 (N= 661,240) and 2013 (N= 634,807) from nine geographically dispersed states were linked with the American Hospital Association annual surveys to identify maternal residence zip codes and the addresses of hospitals with obstetric services or advanced neonatal care. The uneven geographic distribution of hospital obstetric and advanced neonatal care increased between 2002 and 2013, varying by maternal residential rurality and insurance type. Women in rural non-core areas, with Medicaid or no insurance, and living in counties with lower income and educational attainment, had to travel farther to the nearest hospital with obstetric services or neonatal care than their counterparts. Women in communities that are already socioeconomically disadvantaged face increasing and substantial travel distances to access perinatal care.

Utilization trends of omalizumab, a first-in-its-class asthma biologic approved in 2003 for individuals not controlled by inhaled corticosteroids (ICSs), may reveal lessons in patient selection.