Haemoglobin extremes a risk.

Australian Doctor,  November, 2005  

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by Jane McCredie

HAEMOGLOBIN concentrations at both the upper and lower end of normal are independently associated with increased mortality in the elderly, a study shows.

People over 65 years whose haemoglobin levels were in the bottom 20% of the cohort had the highest risk of dying over 11 years' follow-up, the observational study found (Archives of Internal Medicine, 24 October).

The association remained after adjustment for confounding factors, the researchers said, raising the possibility of a causal relationship.

In a finding the researchers described as ...

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