Featured Research

from universities, journals, and other organizations

Hepatitis B Accounts For 40 Percent Of 'Missing' Asian Women

Date:
November 9, 2005
Source:
University of Chicago Press Journals
Summary:
In a groundbreaking, sure-to-be-controversial new study, Emily Oster (a graduate student in economics at Harvard University) argues that excess female mortality, such as infanticide, may not be the only cause of uncommonly high male to female ratios in many Asian countries. Oster proposes an explanation for some of the observed over-representation of males: the hepatitis B virus.

In a groundbreaking, sure-to-be-controversial new study, Emily Oster (a graduate student in economics at Harvard University) argues that excess female mortality, such as infanticide, may not be the only cause of uncommonly high male to female ratios in many Asian countries. It has long been observed that the relative number of males is higher in certain Asian countries than in the West, where it is close to unity. A number of authors have suggested that this imbalance reflects neglect of female children and poor conditions for women and, as a result, have argued that as many as 100 million women are "missing."

Related Articles


However, in the forthcoming issue of the Journal of Political Economy, Oster proposes an explanation for some of the observed over-representation of males: the hepatitis B virus. She presents new evidence, consistent with existing scientific literature, that carriers of the hepatitis B virus are 1.5 times more likely to have a male child. This evidence includes both cross-country analyses and natural experimentation based on recent vaccination campaigns. In addition, hepatitis B is common in many Asian countries, particularly China, where some 10 to 15 percent of the population is infected.

Using data on viral prevalence by country as well as estimates of the effect of hepatitis on birth sex, Oster concludes that hepatitis B can account for about 45 percent of the "missing women" -- or, more specifically, for as many as 50 percent of the "missing women" in Egypt and West Asia; under 20 percent in Bangladesh, India, Pakistan and Nepal; and around 75 percent of the "missing women" in China.

###

Oster, Emily. "Hepatitis B and the Case of the Missing Women." Journal of Political Economy 113:6.


Story Source:

The above story is based on materials provided by University of Chicago Press Journals. Note: Materials may be edited for content and length.


Cite This Page:

University of Chicago Press Journals. "Hepatitis B Accounts For 40 Percent Of 'Missing' Asian Women." ScienceDaily. ScienceDaily, 9 November 2005. <www.sciencedaily.com/releases/2005/11/051109092603.htm>.
University of Chicago Press Journals. (2005, November 9). Hepatitis B Accounts For 40 Percent Of 'Missing' Asian Women. ScienceDaily. Retrieved October 30, 2014 from www.sciencedaily.com/releases/2005/11/051109092603.htm
University of Chicago Press Journals. "Hepatitis B Accounts For 40 Percent Of 'Missing' Asian Women." ScienceDaily. www.sciencedaily.com/releases/2005/11/051109092603.htm (accessed October 30, 2014).

Share This



More Health & Medicine News

Thursday, October 30, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Mind-Controlled Prosthetic Arm Restores Amputee Dexterity

Mind-Controlled Prosthetic Arm Restores Amputee Dexterity

Reuters - Innovations Video Online (Oct. 29, 2014) A Swedish amputee who became the first person to ever receive a brain controlled prosthetic arm is able to manipulate and handle delicate objects with an unprecedented level of dexterity. The device is connected directly to his bone, nerves and muscles, giving him the ability to control it with his thoughts. Matthew Stock reports. Video provided by Reuters
Powered by NewsLook.com
Google To Use Nanoparticles, Wearables To Detect Disease

Google To Use Nanoparticles, Wearables To Detect Disease

Newsy (Oct. 29, 2014) Google X wants to improve modern medicine with nanoparticles and a wearable device. It's all an attempt to tackle disease detection and prevention. Video provided by Newsy
Powered by NewsLook.com
Can Drinking Milk Lead To Early Death?

Can Drinking Milk Lead To Early Death?

Newsy (Oct. 29, 2014) Researchers in Sweden released a study showing heavy milk drinkers face an increased mortality risk from a variety of causes. Video provided by Newsy
Powered by NewsLook.com
Obama: The US Will Not 'run and Hide' From Ebola

Obama: The US Will Not 'run and Hide' From Ebola

AP (Oct. 29, 2014) Surrounded by health care workers in the White House East Room, President Barack Obama said the U.S. will likely see additional Ebola cases in the weeks ahead. But he said the nation can't seal itself off in the fight against the disease. (Oct. 29) 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