Monday January 22, 2018

Researchers: Dementia risk in US lowest among Asian Americans

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New York: Researchers said the chance of the brain disorder is lowest among Asian Americans while examining dementia risk in the US.

The study compared six ethnic and racial groups within the same geographic population and found significant variation in dementia incidence among them.

“This is the only research that directly compares dementia for these six racial and ethnic groups, representing the true ageing demographic of the United States in a single study population,” said study lead author Elizabeth Rose Mayeda, a postdoctoral fellow at University of California, San Francisco.

The researchers found dementia incidence to be highest in Blacks and American Indian/Alaska Natives, lowest among Asian Americans, and intermediate among Latinos, Pacific Islanders and Whites.

The study population included more than 274,000 Northern California members of Kaiser Permanente, the nation’s largest private integrated health care system with more than 10 million members.

The researchers used electronic health records covering patient visits over 14 years from January 2000 through December 2013 to identify participants diagnosed with dementia, as well as their race and ethnicity.

The researchers found that dementia incidence over the study period ranged from an average annual rate of 26.6 cases per 1,000 for Blacks, and 22.2 cases per 1,000 for American Indians/Alaskan Natives, to 15.2 cases per 1,000 for Asian Americans.

In between were Latinos and Pacific Islanders with an average annual rate of 19.6 cases per 1,000 and Whites with 19.3 per 1,000.

The results were published online in Alzheimer’s & Dementia: The Journal of the Alzheimer’s Association.(IANS)

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U.S. Library of Congress will not collect every tweet on twitter

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FILE - The Twitter app is seen on a mobile phone in Philadelphia, April 26, 2017
U.S. Library of Congress will not collect every tweet on twitter. VOA

US, Dec 31, 2017: The U.S. Library of Congress says it will no longer collect every single tweet published on Twitter as it has been doing for the past 12 years.

The library said this week that it can no longer collect everything across the entire social media platform because of recent changes Twitter has made, including allowing longer tweets, photos and videos.

It said in a blog post this week that its first objective with collecting and archiving tweets was “to document the emergence of online social media for future generations.” The library says it has fulfilled that objective and no longer needs to be a “comprehensive” collector of tweets.

FILE - In this Dec. 19, 2013 file photo, the Library of Congress is seen in Washington.
FILE – In this Dec. 19, 2013 file photo, the Library of Congress is seen in Washington. VOA

The Library of Congress said it will still collect and archive tweets in the future, but will do so on a more selective basis. It said going forward “the tweets collected and archived will be thematic and event-based, including events such as elections, or themes of ongoing national interest, e.g. public policy.”

The library said it generally does not collect media comprehensively, but said it made an exception for public tweets when the social media platform was first developed.

The library said it will keep its previous archive of tweets from 2006-2017 to help people understand the rise of social media and to offer insight into the public mood during that time. “Throughout its history, the Library has seized opportunities to collect snapshots of unique moments in human history and preserve them for future generations,” it said.

“The Twitter Archive may prove to be one of this generation’s most significant legacies to future generations. Future generations will learn much about this rich period in our history, the information flows, and social and political forces that help define the current generation,” it said. (VOA)

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