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Asthma Prevalence In Chinese Adolescents

Main Category: Respiratory / Asthma
Article Date: 18 Nov 2008 - 2:00 PDT

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A study of Chinese adolescents living in mainland China, Hong Kong and Canada suggests that asthma may be influenced by environmental factors as well as genetics.

Researchers based in Canada and China looked at 13,223 school children aged 13-14 from Vancouver, Guangzhou, Beijing and Hong Kong, of whom 10,924 were included in the analysis. Asthma symptoms in Chinese adolescents were lowest among those living in mainland China, higher for those in Hong Kong or immigrating to Canada, and highest among those born in Canada.

About CMAJ

CMAJ is the leading health sciences journal in Canada. CMAJ is a general medical journal publishing original research and review articles, commentaries and editorials, practice updates, an arts and ideas section and health news. Published continuously since 1911, new issues are uploaded on http://www.cmaj.ca every second Monday at 4:30 p.m. EST/EDT. http://www.cmaj.ca contains the complete editorial contents of CMAJ, supplemented by a variety of interactive features and additional content.

CMAJ is an open- and free-access journal - there are no author or page charges and access is provided free on the web (HighWire Press), http://www.cmaj.ca without registration. http://www.cmaj.ca has about 1 million requests and 250,000 page views per month. The Journal is part of the PubMed Central collection of journals http://www.pubmedcentral.nih.gov at the National Library of Medicine thus providing a guarantee of permanent archiving and open access. PubMed Central is now processing back issues of CMAJ to 1911.

CMAJ's impact factor - a measure of the scientific importance of articles published - has more than tripled since 1997 and is now 7.1.

The Journal receives about 2000 manuscripts a year (including letters to the editor and news articles). CMAJ's acceptance rate for unsolicited research and review articles is about 12%.

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