Nav: Home

Demographics can help identify migrants to Canada at high risk of TB

February 26, 2018

Demographic characteristics can help identify groups of immigrants in Canada at high risk of tuberculosis (TB), according to new research in CMAJ (Canadian Medical Association Journal).

"Screening latent TB infection based on demographic factors at the time of immigration is a necessary first step toward eliminating TB in migrants to Canada," says Dr. James Johnston of the University of British Columbia and the BC Centre for Disease Control in Vancouver, BC.

The study examined TB outcomes in permanent residents of Canada who lived in BC between 1985 and 2012. Researchers sought to identify groups at highest risk of TB based on demographic characteristics when immigrating to Canada. TB rates increased with older age at the time of immigration, with people aged 65 years and older having the highest rates. People who emigrated from regions with highest TB incidence had TB rates in Canada more than 21 times that of people coming from regions with the lowest TB incidence.

"Our study adds to the understanding of long-term TB incidence in migrant populations in Canada by showing that rates remain elevated up to two decades after migration," write the authors.

The authors suggest that latent TB screening and treatment may be practical and high impact, and will help reduce TB incidence in some high-risk groups.
The study was funded by the Michael Smith Foundation for Health Research, the BC Lung Association, and the Canadian Institutes of Health Research.

"Demographic predictors of active tuberculosis in people migrating to British Columbia, Canada: a retrospective cohort study" is published February 26, 2018.

Visual abstract permanent link:

Canadian Medical Association Journal

Related Immigrants Articles:

Undocumented immigrants' transplant survival rates on par with US citizens'
Unauthorized immigrants who receive liver transplants in the United States have comparable three-year survival rates to US citizens, according to a study by researchers at UC San Francisco.
Immigrants who committed felonies less likely than nonimmigrants to commit another felony
A new study compared recidivism rates of foreign-born and native-born individuals formerly incarcerated for felonies and released from prisons in Florida.
Uncovering the roots of discrimination toward immigrants
Immigrants are often encouraged to assimilate into their new culture as a way of reducing conflict with their host societies, to appear less threatening to the culture and national identity of the host population.
Immigrants: citizens' acceptance depends on questions asked
How many immigrants per year should Switzerland be prepared to welcome?
How societal attitudes, political rhetoric affect immigrants' health
For immigrants to the United States, the current political climate, and debates over issues such as a border wall, become part of the environment that influences their health, according to a new University of Washington study.
More Immigrants News and Immigrants Current Events

Best Science Podcasts 2019

We have hand picked the best science podcasts for 2019. Sit back and enjoy new science podcasts updated daily from your favorite science news services and scientists.
Now Playing: TED Radio Hour

Erasing The Stigma
Many of us either cope with mental illness or know someone who does. But we still have a hard time talking about it. This hour, TED speakers explore ways to push past — and even erase — the stigma. Guests include musician and comedian Jordan Raskopoulos, neuroscientist and psychiatrist Thomas Insel, psychiatrist Dixon Chibanda, anxiety and depression researcher Olivia Remes, and entrepreneur Sangu Delle.
Now Playing: Science for the People

#537 Science Journalism, Hold the Hype
Everyone's seen a piece of science getting over-exaggerated in the media. Most people would be quick to blame journalists and big media for getting in wrong. In many cases, you'd be right. But there's other sources of hype in science journalism. and one of them can be found in the humble, and little-known press release. We're talking with Chris Chambers about doing science about science journalism, and where the hype creeps in. Related links: The association between exaggeration in health related science news and academic press releases: retrospective observational study Claims of causality in health news: a randomised trial This...