In the U.S., about 13 percent of women and 10 percent of men aged 60 or older have knee pain due to osteoarthritis (OA). Osteoarthritis occurs when a joint becomes inflamed, usually because the protective cartilage and other tissues that cushion joints like the knee become damaged and worn over time. Knee pain from OA can make it harder to take care of yourself, which can damage your quality of life. In turn, that can lead to depression.
According to researchers, knee OA affects some 55 percent of people over age 40 in Japan. A research team from the country recently published a study in the Journal of the American Geriatrics Society examining the effects of knee pain on depression since, until now, few studies have focused on how knee pain and impaired knee function relate to depression.
To learn more, the researchers examined information from 573 people aged 65 or older who participated in the Kurabuchi Study, an ongoing look at the health of older adults living in central Japan.