Featured Research

from universities, journals, and other organizations

Knee pain common complaint in middle-aged and mature women

Date:
December 19, 2011
Source:
Wiley-Blackwell
Summary:
New research shows 63 percent of women age 50 and older reported persistent, incident, or intermittent knee pain during a 12-year study period. Predictors for persistent pain included higher body mass index, previous knee injury, and radiographic osteoarthritis.

New research shows 63% of women age 50 and older reported persistent, incident, or intermittent knee pain during a 12-year study period. Predictors for persistent pain included higher body mass index (BMI), previous knee injury, and radiographic osteoarthritis (OA). Details of this longitudinal study are available in Arthritis & Rheumatism, a journal published by Wiley-Blackwell on behalf of the American College of Rheumatology (ACR).

Related Articles


According to the ACR more than 27 million Americans over age 25 suffer from OA -- a leading cause of disability worldwide -- with pain being the most problematic symptom for patients. The economic burden from OA is substantial, with reports estimating the U.K. annual loss of productivity cost at 3.2 billion. In the U.S., the Centers for Disease Control and Prevention (CDC) estimates job-related OA costs $3.4 to $13.2 billion per year. Prior studies suggest knee OA, specifically, is associated with impaired physical function and substantial societal burden. In fact, the CDC reported close to 500,000 total knee replacements were performed in the U.S. in 2004 with more than $14 billion spent on hospital costs related to the procedure.

"Our study is the first community-based investigation of knee pain patterns using multiple assessment points over a 12-year period," explains lead author Nigel Arden, MSc, MD, a Professor of Rheumatology at the University of Oxford in the UK. "Understanding the prevalence and predictors of knee pain is the first step in developing comprehensive pain assessment plans that could lead to more targeted treatment options for those burdened by OA."

For the present study, researchers used data obtained from participants of the Chingford Study, a prospective population-based study of OA and osteoporosis established in 1989. More than 1,000 women between the ages of 44 and 57 years (median age of 52 years) participated, and were representative of women in the U.K. general population in terms of weight, height and smoking characteristics. At the end of the 12-year study, data relating to self-reported knee pain was analyzed and used to classify the 489 remaining participants into four pain groups -- asymptomatic, persistent, incident, and intermittent.

The team found a prevalence of 44% for "any days of pain" and 23% for "pain on most days of the previous month" in the cohort at the end of the study period. Of those experiencing "any pain" versus "pain on most days," 9% and 2% had persistent pain; 24% and 16% had incident pain; and 29% and 18% had intermittent pain, respectively. Researchers determined that a higher BMI predicted persistent and incident pain patterns, while radiographic OA was a predictor of persistent pain. Those reporting knee injury were likely to have persistent or intermittent pain patterns.

The authors suggest a primary strength of this study is that it describes the natural history of knee pain over a long-term period and incorporates data from multiple time points. Study findings confirm the presence of variable pain patterns, with few women consistently reporting knee pain at each measurement time point. Professor Arden concludes, "Validation of our findings through reproduction in other patient groups is needed to advance knowledge of knee pain predictors that will ultimately enhance prevention and treatment strategies for those with OA."


Story Source:

The above story is based on materials provided by Wiley-Blackwell. Note: Materials may be edited for content and length.


Journal Reference:

  1. A. Soni, A. Kiran, D. Hart, K.M. Leyland, L. Goulston, C. Cooper, M.K. Javaid, T.D. Spector, N.K. Arden. Reported knee pain prevalence in a community-based cohort over 12 years. Arthritis & Rheumatism, 2011; DOI: 10.1002/art.33434

Cite This Page:

Wiley-Blackwell. "Knee pain common complaint in middle-aged and mature women." ScienceDaily. ScienceDaily, 19 December 2011. <www.sciencedaily.com/releases/2011/12/111219102048.htm>.
Wiley-Blackwell. (2011, December 19). Knee pain common complaint in middle-aged and mature women. ScienceDaily. Retrieved December 18, 2014 from www.sciencedaily.com/releases/2011/12/111219102048.htm
Wiley-Blackwell. "Knee pain common complaint in middle-aged and mature women." ScienceDaily. www.sciencedaily.com/releases/2011/12/111219102048.htm (accessed December 18, 2014).

Share This


More From ScienceDaily



More Health & Medicine News

Thursday, December 18, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

UN: Up to One Million Facing Hunger in Ebola-Hit Countries

UN: Up to One Million Facing Hunger in Ebola-Hit Countries

AFP (Dec. 17, 2014) Border closures, quarantines and crop losses in West African nations battling the Ebola virus could lead to as many as one million people going hungry, UN food agencies said on Wednesday. Duration: 00:52 Video provided by AFP
Powered by NewsLook.com
When You Lose Weight, This Is Where The Fat Goes

When You Lose Weight, This Is Where The Fat Goes

Newsy (Dec. 17, 2014) Can fat disappear into thin air? New research finds that during weight loss, over 80 percent of a person's fat molecules escape through the lungs. Video provided by Newsy
Powered by NewsLook.com
Why Your Boss Should Let You Sleep In

Why Your Boss Should Let You Sleep In

Newsy (Dec. 17, 2014) According to research out of the University of Pennsylvania, waking up for work is the biggest factor that causes Americans to lose sleep. Video provided by Newsy
Powered by NewsLook.com
Flu Outbreak Closing Schools in Ohio

Flu Outbreak Closing Schools in Ohio

AP (Dec. 17, 2014) A wave of flu illnesses has forced some Ohio schools to shut down over the past week. State officials confirmed one pediatric flu-related death, a 15-year-old girl in southern Ohio. (Dec. 17) Video provided by AP
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:

Strange & Offbeat Stories


Health & Medicine

Mind & Brain

Living & Well

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins