A blood test that predicts the risk of dying
2020-01-13 from cbc.ca
As Canada's population ages, there is increasing demand on our health-care system. A simple blood test may help doctors predict who is at risk of imminent death, according to a study published Monday in the Canadian Medical Association Journal.
Dr. Stig Bojesen and colleagues from the University of Copenhagen studied 108,135 Danish people ages 20 to 100 years who were part of the Copenhagen General Population Study. During the study period, a total of 10,372 people died. The researchers combed through the health records of those who died in search of abnormal blood test results.
They found that the people who died during the study period had lower levels of a white blood cell called a lymphocyte. The researchers crunched the numbers. Compared with those with a normal lymphocyte count, those patients with a low lymphocyte count were 1.6 times more likely to die during the study period.
There are several possible ways in which a low lymphocyte count might be connected to an early demise.
One clue is that the current study found that a low lymphocyte count was associated with an increased risk of death from cancer, cardiovascular disease, respiratory disease, infections and other causes. These are chronic diseases that are common in older patients
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