Featured Research

from universities, journals, and other organizations

Demographic and clinical factors appear associated with survival in patients with Parkinson disease

Date:
January 2, 2012
Source:
JAMA and Archives Journals
Summary:
Demographics and clinical factors appear to be associated with survival in patients with Parkinson disease (PD), and the presence of dementia is associated with a significant increase in mortality, according to a new report.

Demographics and clinical factors appear to be associated with survival in patients with Parkinson disease (PD), and the presence of dementia is associated with a significant increase in mortality, according to a report in the January issue of Archives of Neurology, one of the JAMA/Archives journals.

Although Parkinson disease is a common neurodegenerative disease among the elderly, there are conflicting data on the survival rates of patients with this disease, according to background information in the article.

Allison W. Willis, M.D., from Washington University School of Medicine, St. Louis, and colleagues conducted a nationwide retrospective cohort study of 138,000 Medicare beneficiaries with incident Parkinson disease who were identified in 2002 and followed up through 2008.

Sex and race "significantly predicted" survival, the researchers note. Patients who were women, Hispanic or Asian had a lower adjusted risk of death than white men. During the six-year study, 64 percent of patients with Parkinson disease died, with black patients having the highest crude death rate (66.4 percent), followed by white patients (64.6 percent), Hispanics (55.4 percent) and Asian patients (50.8 percent).

Dementia was diagnosed in 69.6 percent of the study population by the end of the study period and the highest frequency was found in black patients (78.2 percent) followed by Hispanics (73.1 percent). White and Asian patients with PD had lower, similar rates of dementia at 69 percent and 66.8 percent, respectively.

Patients with Parkinson disease and dementia had a greater likelihood of death than those without dementia. The researchers also note that patients with terminal Parkinson disease were hospitalized frequently for cardiovascular disease and infection but rarely for Parkinson disease. They also suggest Parkinson patients living in urban high industrial metal emission areas had a slightly higher adjusted risk of death, but researchers suggest more work is needed to understand if environmental exposures can influence the course of Parkinson disease or survival.

"We demonstrate that dementia occurs commonly in patients with incident PD 65 years and older; this had the strongest effect on age-adjusted survival among the variables that we studied," the authors conclude. "Our data highlight the need for prevention of or treatment for dementia in patients with PD because of its effect on survival," the authors conclude.


Story Source:

The above story is based on materials provided by JAMA and Archives Journals. Note: Materials may be edited for content and length.


Journal Reference:

  1. A. W. Willis, M. Schootman, N. Kung, B. A. Evanoff, J. S. Perlmutter, B. A. Racette. Predictors of Survival in Patients With Parkinson Disease. Archives of Neurology, 2012; DOI: 10.1001/archneurol.2011.2370

Cite This Page:

JAMA and Archives Journals. "Demographic and clinical factors appear associated with survival in patients with Parkinson disease." ScienceDaily. ScienceDaily, 2 January 2012. <www.sciencedaily.com/releases/2012/01/120102180848.htm>.
JAMA and Archives Journals. (2012, January 2). Demographic and clinical factors appear associated with survival in patients with Parkinson disease. ScienceDaily. Retrieved September 23, 2014 from www.sciencedaily.com/releases/2012/01/120102180848.htm
JAMA and Archives Journals. "Demographic and clinical factors appear associated with survival in patients with Parkinson disease." ScienceDaily. www.sciencedaily.com/releases/2012/01/120102180848.htm (accessed September 23, 2014).

Share This



More Health & Medicine News

Tuesday, September 23, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Liberia Pleads for Help to Fight Ebola

Liberia Pleads for Help to Fight Ebola

AP (Sep. 22, 2014) Liberia's finance minister is urging the international community to quickly follow through on pledges of cash to battle Ebola. Bodies are piling up in the capital Monrovia as the nation awaits more help. (Sept. 22) Video provided by AP
Powered by NewsLook.com
Ebola Doctor Says Border Controls Critical

Ebola Doctor Says Border Controls Critical

AP (Sep. 22, 2014) A Florida doctor who helped fight the expanding Ebola outbreak in West Africa says the disease can be stopped, but only if nations quickly step up their response and make border control a priority. (Sept. 22) Video provided by AP
Powered by NewsLook.com
Global Ebola Aid Increasing But Critics Say It's Late

Global Ebola Aid Increasing But Critics Say It's Late

Newsy (Sep. 21, 2014) More than 100 tons of medical supplies were sent to West Africa on Saturday, but aid workers say the global response is still sluggish. Video provided by Newsy
Powered by NewsLook.com
Sierra Leone in Lockdown to Control Ebola

Sierra Leone in Lockdown to Control Ebola

AP (Sep. 21, 2014) Sierra Leone residents remained in lockdown on Saturday as part of a massive effort to confine millions of people to their homes in a bid to stem the biggest Ebola outbreak in history. (Sept. 20) 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