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).
The Cost of Rehab. Rehab can be a costly proposition for many people. Even though the cost to the individual patient and his family has declined in recent years, treatment programs often reach into the thousands of dollars. In 2002, the average cost of a rehab treatment program was around $1,400. Residential treatment rates stood around $3,800, and outpatient methadone treatments cost an average of about $7,400. Some rehab facilities' inpatient treatment programs can cost into the tens of thousands of dollars. Crossroads Centre, a rehab center in Antigua, West Indies, founded by guitarist Eric Clapton, charges an average of $15,000 per month for treatment [source: Addiction Resource Guide ].