Most commonly, rheumatoid factor is used as a blood test for the diagnosis of rheumatoid arthritis. Rheumatoid factor is present in about 80% of adults (but a much lower proportion of children) with rheumatoid arthritis. In people with rheumatoid arthritis, high levels of rheumatoid factor can indicate a tendency toward more aggressive disease and/or a tendency to develop rheumatoid nodules and/or rheumatoid lung disease.
The City of Opa-locka had a population of 16,683 as of July 1, 2017. Opa-locka ranks in the upper quartile for Population Density and Diversity Index when compared to the other cities, towns and Census Designated Places (CDPs) in Florida. See peer rankings below. The primary coordinate point for Opa-locka is located at latitude 25.9 and longitude -80.2552 in Miami-Dade County. The formal boundaries for the City of Opa-locka (see map below) encompass a land area of 4.3 sq. miles and a water area of 0.18 sq. miles.
Lake Worth is a coastal city of 37,000 residents and 7 square miles, located in Palm Beach County, Florida. The Atlantic Ocean and the broad waters of the Lake Worth Lagoon form the city's east boundary and the beautiful fresh waters of Lake Osborne its west. Next door to Palm Beach, it is situated along the latitude making the northern most point of the subtropics. Lake Worth is truly the place â where the tropics beginâ and the fun never ends. Lake Worth is a dynamic, multi-cultural city with a strong social and environmental consciousness. People are drawn to the city by its independent character, acceptance of different cultures and lifestyles, many historic structures, hip downtown, and distinctive residential neighborhoods.