Featured Research

from universities, journals, and other organizations

Little difference found between self-reported, measured weights following bariatric surgery

Date:
November 4, 2013
Source:
The JAMA Network Journals
Summary:
In an analysis that included nearly 1,000 patients, self-reported weights following bariatric surgery were close to measured weights, suggesting that self-reported weights used in studies are accurate enough to be used when measured weights are not available.

In an analysis that included nearly 1,000 patients, self-reported weights following bariatric surgery were close to measured weights, suggesting that self-reported weights used in studies are accurate enough to be used when measured weights are not available, according to a Research Letter published online by JAMA.

Related Articles


"Obtaining standardized weights in long-term studies can be difficult. Self-reported weights are more easily obtained, but less accurate than those from a calibrated scale and may be inaccurately reported," according to background information in the article.

Nicholas J. Christian, Ph.D., of the University of Pittsburgh Graduate School of Public Health, and colleagues investigated whether self-reported weights following bariatric surgery differed from weights obtained by study personnel using a standard scale. They used data collected between April 2010 and November 2012 at annual assessments from the Longitudinal Assessment of Bariatric Surgery-2, an observational cohort study of 2,458 adults undergoing an initial Roux-en-Y gastric bypass (RYGB), laparoscopic adjustable gastric band (LAGB), or other bariatric procedure at 10 centers. Participants were sent mailed questionnaires each year and asked to report their: (1) weight from last medical office or weight loss program visit (self-reported medical weight) and (2) last self-weighing (self-reported personal weight).

The final analysis included 988 participants, including 164 with a self-reported medical weight, 580 with a self-reported personal weight, and 244 with both self-reported weights. Across the 2 groups who self-reported weight, women and men underreported their weight by an average 2.2 lbs. or less and the degree of underreporting was not different between women and men. Self-reported medical weights were closer to measured weights than were self-reported personal weights for both women and men.

"Small differences between self-reported and measured weights were found and may be due to differences in clothing, inaccurate personal scales, time between measurements, or intentional misrepresentation," the authors write. "Self-reported weights after bariatric surgery may be more accurate because participants who undergo surgery to lose weight may be especially attentive to their weight."


Story Source:

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


Journal Reference:

  1. Nicholas J. Christian, PhD; Wendy C. King, PhD; Susan Z. Yanovski, MD; Anita P. Courcoulas, MD, MPH; Steven H. Belle, PhD, MScHyg. Validity of Self-reported Weights Following Bariatric Surgery. JAMA, November 2013

Cite This Page:

The JAMA Network Journals. "Little difference found between self-reported, measured weights following bariatric surgery." ScienceDaily. ScienceDaily, 4 November 2013. <www.sciencedaily.com/releases/2013/11/131104112639.htm>.
The JAMA Network Journals. (2013, November 4). Little difference found between self-reported, measured weights following bariatric surgery. ScienceDaily. Retrieved January 28, 2015 from www.sciencedaily.com/releases/2013/11/131104112639.htm
The JAMA Network Journals. "Little difference found between self-reported, measured weights following bariatric surgery." ScienceDaily. www.sciencedaily.com/releases/2013/11/131104112639.htm (accessed January 28, 2015).

Share This


More From ScienceDaily



More Health & Medicine News

Wednesday, January 28, 2015

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Malnutrition on the Rise as Violence Flares in C. Africa

Malnutrition on the Rise as Violence Flares in C. Africa

AFP (Jan. 28, 2015) Violence can flare up at any moment in Bambari with only a bridge separating Muslims and Christians. Malnutrition is on the rise and lack of water means simple cooking fires threaten to destroy makeshift camps where people are living. Duration: 00:40 Video provided by AFP
Powered by NewsLook.com
Poultry Culled in Taiwan to Thwart Bird Flu

Poultry Culled in Taiwan to Thwart Bird Flu

Reuters - News Video Online (Jan. 28, 2015) Taiwan culls over a million poultry in efforts to halt various strains of avian flu. Julie Noce reports. Video provided by Reuters
Powered by NewsLook.com
Media Criticizing Parents For Not Vaccinating Children

Media Criticizing Parents For Not Vaccinating Children

Newsy (Jan. 28, 2015) As the Disneyland measles outbreak continues to spread, the media says parents who choose not to vaccinate their children are part of the cause. Video provided by Newsy
Powered by NewsLook.com
Shark Bite Victim Making Amazing Recovery

Shark Bite Victim Making Amazing Recovery

AP (Jan. 27, 2015) A Texas woman who lost more than five pounds of flesh to a shark in the Bahamas earlier this month could be released from a Florida hospital soon. Experts believe she was bitten by a bull shark while snorkeling. (Jan. 27) 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