The CCP antibody test helps to diagnose RA and can be useful in identifying people with a more rapidly erosive form of the disease. RA is a chronic, systemic autoimmune disease that causes inflammation, pain, stiffness, and destructive changes in the hands, feet, and other joints throughout the body.
As you can see from the map above, most of the Illinois population is based in the North East of the state. Chicago, home to 2,695,598 people, remains the largest city in Illinois. It dwarfs the state's other cities â the next largest is Aurora, with 197,899 people.
In 1897, the village had twenty factories. By 1901, Chicago Heights had a population of over 5,000 and became a city. Its population nearly tripled in the next ten years. At the time of its incorporation as a city in 1900, the original residents of Chicago Heights were German settlers. In following years, the city became a haven for Italian, Polish, and Irish immigrants.