In 2005, the mutual insurance company became NGM Insurance Company with the conversion to a mutual holding company structure and the formation of Main Street America Mutual Holdings Inc. The company also redomesticated to the State of Florida.
Rheumatoid arthritis (RA) is an autoimmune disease that causes inflammation of the joints. Because many symptoms of RA are similar to those of a variety of other diseases, diagnosis can be difficult. A correct diagnosis requires clinical evaluation, X-rays, and a series of laboratory tests.
There are more than one hundred different types of arthritis. Two of the most common types are osteoarthritis, caused by the wear and tear exerted on the joints through a lifetime and rheumatoid arthritis, caused by an autoimmune response in the body. Osteoarthritis is the arthritis associated with getting older.