Based on the findings from a single RCT, there is moderate evidence that inpatient rehabilitation results in successful return to work and return to duty for the majority of military service members. There were three studies that looked at vocational rehabilitation: a cost-benefit analysis, a case series, and an outcome study. Reviews of these studies revealed that there is limited evidence that vocational rehabilitation results in greater total taxpayer benefits than either total program operational costs or government costs; that after vocational rehabilitation the majority of subjects have fair or good adjusted outcome; or that individuals with the most significant cognitive impairments benefit the most from vocational rehabilitation services. One study examined the effectiveness of supported employment. Based on this there is limited evidence that supported employment improves employment outcomes particularly individuals who are older, have more education, have no prior work experience or who have suffered more severe injuries.