Depressed people are three times more likely to develop Parkinson's disease, reveals new study.
Study author Albert C. Yang, MD, PhD, with Taipei Veterans General Hospital in Taipei, Taiwan, said that their study suggests that depression may also be an independent risk factor for Parkinson's disease.
Researchers analyzed the medical records of 4,634 people with depression and 18,544 free of depression over 10 years.
During the 10-year follow-up period, 66 people with depression, or 1.42 percent, and 97 without depression, or 0.52 percent, were diagnosed with Parkinson's disease. People with depression were 3.24 times more likely to develop Parkinson's disease than those without depression.
The study has been published online in journal Neurology.