List of metropolitan areas by population. One concept which measures the world's largest cities is that of the metropolitan area, which is based on the concept of a labor market area and is typically defined as an employment core (an area with a high density of available jobs) and the surrounding areas that have strong commuting ties to the core.
Average Costs. In treatment year 1, the average costs per patient diagnosed with PTSD ($8,300), TBI ($11,700), or both ($13,800) were much higher than the average costs for those with neither PTSD nor TBI ($2,400) (see Table 2 and Figure 3 on page 20).
During fiscal years 2004 through 2009, VHA spent $3.7 billion for the first four years of treatment on the OCO patients analyzed by CBO. CBO estimates that VHA spent 60 percent of that sum ($2.2 billion) on patients with PTSD, TBI, or both.