Background: Previous assessments of Afghanistan/Iraq Veterans have lacked a systematic overview of all injury and illness experiences captured by the Veterans Health Administration (VHA) health care services. In this initial study, we quantify the health care utilization behavior of eligible Veterans and describe the level and type of usage among them. Methods: A roster of service members who have served in Afghanistan/Iraq and became eligible for VHA care between 2002 and 2010 and their corresponding administrative VA medical encounter data were abstracted from the VHA Office of Public Health Operation Enduring Freedom/Operation Iraqi Freedom/Operation New Dawn Health Surveillance System. Results: Between 2002 and 2010, approximately 55% of eligible Veterans accessed VHA health care. Higher utilization was observed among Veterans 50 years of age and older compared to younger Veterans. Higher utilization was also observed among Veterans with increasing cumulative deployment time. Mental disorder diagnostic codes accounted for the greatest number of visits per Veteran. Conclusions: Veterans with mental health diagnoses may need a different level of care than other VHA users. Other service factors associated with utilization require further research to better understand the underlying relationship. Current observed results may be reflective of future expected utilization patterns and may assist in resource planning and research.
U022016