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).
Care and antiretroviral therapy consisting of four drugs was calculated to cost between Â£22,775 and Â£48,000 per patient per year depending on an individualâs health. By 2013 the researchers project that the total population of HIV-positive people attending NHS services will reach 78,370 and that in 2013 HIV treatment and care services will cost between Â£720 million and Â£758 million. But this would increase to as much as Â£1,065 million when the cost of social and community care was included. âThe direct cost for treatment and care for PLWHIV [people living with HIV] has risen 4.6 fold between 1997 and 2006,â comment the investigators, with costs projected to increase â1.5 foldâ between 2007 and 2013.