Jury still out on cancer link to OSA

Canadian researchers investigated the link in a study involving people referred to a sleep laboratory in Toronto who were suspected to have OSA.

Between 1994 and 2010, 10,149 patients had sleep studies, and information about their health was taken from databases such as the Ontario Cancer Registry.

Approximately 5% of the patients had cancer at the time of their sleep study. These patients were likely to be older people with comorbidities and a history of smoking.

During a median follow-up of 93 months, 6.5% of the other patients developed a cancer.

The

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