Featured Research

from universities, journals, and other organizations

Low Vitamin D Linked To Higher Risk Of Hip Fracture

Date:
September 21, 2007
Source:
University of Pittsburgh Schools of the Health Sciences
Summary:
Women with low levels of vitamin D have a significantly increased risk of hip fracture, according to a new study. Women whose vitamin D concentrations were lowest had a 77 percent higher risk of hip fracture than others.

Women with low levels of vitamin D have an increased risk of hip fracture, according to a study led by the University of Pittsburgh Graduate School of Public Health.

Related Articles


Jane A. Cauley, Dr.P.H., professor of epidemiology, and colleagues evaluated patient data on 400 women enrolled in the Women's Health Initiative Observational Study Cohort who had experienced hip fracture, confirmed by their medical record, over a median of 7.1 years. Levels of 25 hydroxyvitamin D, an indicator of vitamin D status, in the bloodstream were measured for these patients and compared with those of a control group matched for age, race, ethnicity and the date of relevant blood work. As vitamin D concentrations decreased, the risk of hip fractures climbed.

"The risk of hip fractures was 77 percent higher among women whose 25 hydroxyvitamin D levels were at the lowest concentrations," said Dr. Cauley, who has spent much of the past 15 years investigating the physical changes that take place in postmenopausal women. "This effect persisted even when we adjusted for other risk factors such as body mass index, family history of hip fracture, smoking, alcohol use and calcium and vitamin D intake."

Vitamin D deficiency early in life is associated with rickets -- a disorder characterized by soft bones and thought to have been eradicated in the United States more than 50 years ago.

Though the exact daily requirement of vitamin D has not been determined, most experts think that people need at least 800 to 1,000 international units a day. Many experts believe the current recommended levels of 400 IUs daily should be increased.

The vitamin is manufactured in the skin after sun exposure, and is not available naturally in many foods other than fish liver oils. Some foods are fortified with the vitamin.

Dr. Cauley's work also focuses on use of estrogen, risks of hip fractures, bone density and cholesterol levels of women who are going through menopause. As a co-principal investigator for the University of Pittsburgh's site of the Women's Health Initiative, a National Institutes of Health-sponsored study, Dr. Cauley and her colleagues continue to examine the effects calcium and vitamin D have on osteoporosis.

This study was recently presented at the 29th annual meeting of the American Society for Bone and Mineral Research at the Hawaii Convention Center.


Story Source:

The above story is based on materials provided by University of Pittsburgh Schools of the Health Sciences. Note: Materials may be edited for content and length.


Cite This Page:

University of Pittsburgh Schools of the Health Sciences. "Low Vitamin D Linked To Higher Risk Of Hip Fracture." ScienceDaily. ScienceDaily, 21 September 2007. <www.sciencedaily.com/releases/2007/09/070920111402.htm>.
University of Pittsburgh Schools of the Health Sciences. (2007, September 21). Low Vitamin D Linked To Higher Risk Of Hip Fracture. ScienceDaily. Retrieved November 26, 2014 from www.sciencedaily.com/releases/2007/09/070920111402.htm
University of Pittsburgh Schools of the Health Sciences. "Low Vitamin D Linked To Higher Risk Of Hip Fracture." ScienceDaily. www.sciencedaily.com/releases/2007/09/070920111402.htm (accessed November 26, 2014).

Share This


More From ScienceDaily



More Health & Medicine News

Wednesday, November 26, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Pet Dogs to Be Used in Anti-Ageing Trial

Pet Dogs to Be Used in Anti-Ageing Trial

Reuters - Innovations Video Online (Nov. 26, 2014) Researchers in the United States are preparing to discover whether a drug commonly used in human organ transplants can extend the lifespan and health quality of pet dogs. Video provided by Reuters
Powered by NewsLook.com
Today's Prostheses Are More Capable Than Ever

Today's Prostheses Are More Capable Than Ever

Newsy (Nov. 26, 2014) Advances in prosthetics are making replacement body parts stronger and more lifelike than they’ve ever been. Video provided by Newsy
Powered by NewsLook.com
From Popcorn To Vending Snacks: FDA Ups Calorie Count Rules

From Popcorn To Vending Snacks: FDA Ups Calorie Count Rules

Newsy (Nov. 25, 2014) The US FDA is announcing new calorie rules on Tuesday that will require everywhere from theaters to vending machines to include calorie counts. Video provided by Newsy
Powered by NewsLook.com
Daily Serving Of Yogurt Could Reduce Risk Of Type 2 Diabetes

Daily Serving Of Yogurt Could Reduce Risk Of Type 2 Diabetes

Newsy (Nov. 25, 2014) Need another reason to eat yogurt every day? Researchers now say it could reduce a person's risk of developing type 2 diabetes. Video provided by Newsy
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