Jan. 2, 2008 -- More than 46 million U.S. adults -- more than 21% -- report ever being diagnosed with arthritis, and their ranks are expected to swell to 67 million adults with doctor-diagnosed arthritis by 2030.
That news appears in January's edition of Arthritis & Rheumatism, along with these figures:
- Osteoarthritis: Nearly 27 million adults
- Fibromyalgia: 5 million adults
- Gout: 3 million adults had gout in the past year and 6 million had ever had gout
- Rheumatoid arthritis: 1.3 million adults
- Polymyalgia rheumatica: 711,000 adults
- Sjogren's syndrome: Between 400,000 and 3.1 million adults
- Juvenile arthritis: 294,000 children
- Lupus: Between 161,000 and 322,000 adults
- Giant cell arteritis: 228,000 adults
Other forms of arthritis, including ankylosing spondylitis and psoriatic arthritis, together affect between 600,000 and 2.4 million adults. And between 4 million and 10 million people have carpal tunnel syndrome, the report shows.
Osteoarthritis, the most common form of arthritis, became even more common in recent years. In 1995, an estimated 21 million U.S. adults had osteoarthritis; that's almost 6 million fewer than at the researchers' last count.
Gout also appears to be on the rise. The number of people reporting gout in the previous year grew from 2.1 million in 1995 to 3 million a decade later.
Arthritis became more common with age and was more commonly reported by women than men.
Almost 9% of people reporting arthritis -- or an estimated 19 million people -- said arthritis limited their activities.
Data came from government surveys conducted from 2003-2005 and from smaller, local surveys for certain types of arthritis. Participants' medical records weren't checked to confirm their self-reported arthritis diagnosis.
The researchers applied the survey findings to the U.S. population based on data from the 2005 census.
The new arthritis statistics are "the best available prevalence estimates for the U.S., but for most specific conditions, more studies ... are needed," write the CDC's Charles Helmick, MD, and colleagues.