Featured Research

from universities, journals, and other organizations

H. pylori, smoking trends, and gastric cancer in US men

Date:
May 21, 2013
Source:
Public Library of Science
Summary:
Trends in Helicobacter pylori and smoking explain a significant proportion of the decline of intestinal-type noncardia gastric adenocarcinoma incidence in US men between 1978 and 2008, and are estimated to continue to contribute to further declines between 2008 and 2040.

The contribution of H. pylori and smoking trends to the decline in gastric cancer in US men.

Trends in Helicobacter pylori (H. pylori) and smoking explain a significant proportion of the decline of intestinal-type noncardia gastric adenocarcinoma (NCGA) incidence in US men between 1978 and 2008, and are estimated to continue to contribute to further declines between 2008 and 2040.

These are the conclusions of a study by Jennifer M. Yeh of the Center for Health Decision Science at the Harvard School of Public Health in Boston and colleagues, published in this week's PLOS Medicine, that suggest H. pylori and smoking trends together accounted for almost half of the observed decline in intestinal-type NCGA between 1978 and 2008. Understanding the combined effects of underlying risk factor trends on health outcomes for intestinal-type NCGA at the population level can help to predict future cancer trends and burden in the US.

The researchers developed a population-based microsimulation model using risk factor data from two national databases, the National Health and Nutrition Examination Survey (NHANES) and National Health Interview Survey (NHIS), and cancer data from the Surveillance, Epidemiology and End Results (SEER) Program. They estimated that the incidence of intestinal-type NCGA in men fell by 60% between 1978 and 2008. Further analysis suggested that H. pylori and smoking trends are responsible for 47% of the observed decline, and that H. pylori trends alone were responsible for 43% of the decrease in cancer but smoking trends were responsible for only a 3% drop. Finally, the researchers projected the incidence of intestinal-type NCGA to decline an additional 47% between 2008 and 2040, with H. pylori and smoking trends accounting for more than 81% of the observed fall. Key limitations to this study include the assumptions made in the model and that the study only examined one type of gastric cancer (GC) and focused only on men.

The authors say: "In conclusion, trends in modifiable risk factors explain a significant proportion of the decline of intestinal-type NCGA incidence in the US, and will contribute to future decline."

They add: "Although past tobacco control efforts have hastened the decline, the full benefits will take several decades to be realized, and further discouragement of smoking and reduction of H. pylori infection should be priorities for GC control efforts."


Story Source:

The above story is based on materials provided by Public Library of Science. Note: Materials may be edited for content and length.


Journal Reference:

  1. Jennifer M. Yeh, Chin Hur, Deb Schrag, Karen M. Kuntz, Majid Ezzati, Natasha Stout, Zachary Ward, Sue J. Goldie. Contribution of H. pylori and Smoking Trends to US Incidence of Intestinal-Type Noncardia Gastric Adenocarcinoma: A Microsimulation Model. PLoS Medicine, 2013; 10 (5): e1001451 DOI: 10.1371/journal.pmed.1001451

Cite This Page:

Public Library of Science. "H. pylori, smoking trends, and gastric cancer in US men." ScienceDaily. ScienceDaily, 21 May 2013. <www.sciencedaily.com/releases/2013/05/130521193954.htm>.
Public Library of Science. (2013, May 21). H. pylori, smoking trends, and gastric cancer in US men. ScienceDaily. Retrieved September 17, 2014 from www.sciencedaily.com/releases/2013/05/130521193954.htm
Public Library of Science. "H. pylori, smoking trends, and gastric cancer in US men." ScienceDaily. www.sciencedaily.com/releases/2013/05/130521193954.htm (accessed September 17, 2014).

Share This



More Health & Medicine News

Wednesday, September 17, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

President To Send 3,000 Military Personnel To Fight Ebola

President To Send 3,000 Military Personnel To Fight Ebola

Newsy (Sep. 16, 2014) President Obama is expected to send 3,000 troops to West Africa as part of the effort to contain Ebola's spread. Video provided by Newsy
Powered by NewsLook.com
Man Floats for 31 Hours in Gulf Waters

Man Floats for 31 Hours in Gulf Waters

AP (Sep. 16, 2014) A Texas man is lucky to be alive after he and three others floated for more than a day in the Gulf of Mexico when their boat sank during a fishing trip. (Sept. 16) Video provided by AP
Powered by NewsLook.com
Ivorians Abandon Monkey Pets in Fear Over Ebola Virus

Ivorians Abandon Monkey Pets in Fear Over Ebola Virus

AFP (Sep. 16, 2014) Since the arrival of Ebola in Ivory Coast, Ivorians have been abandoning their pets, particularly monkeys, in the fear that they may transmit the virus. Duration: 00:47 Video provided by AFP
Powered by NewsLook.com
Study Links Male-Pattern Baldness To Prostate Cancer

Study Links Male-Pattern Baldness To Prostate Cancer

Newsy (Sep. 16, 2014) New findings suggest men with a certain type of baldness at age 45 are 39 percent more likely to develop aggressive prostate cancer. 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:
from the past week

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