Registered nurses have lower overall mortality risk
- From: J <nswex@nalid;non>
- Date: Sun, 06 Jan 2008 06:28:33 -0500
Registered nurses have lower overall mortality risk
January 4, 2008
NEW YORK (Reuters Health) - Nurses have a lower risk of dying from several
different conditions compared with individuals in the general population,
according to the findings of a large Canadian study of registered nurses
(RNs).
However, the researchers also found that the risk of melanoma, the most
deadly type of skin cancer, climbed with the number of years a nurse spent
in her profession.
A subgroup of nurses who worked in hospitals or medical-surgical
specialties had an increased risk of lung cancer.
The increased risk with longer-term work could be related to occupational
exposures to carcinogens, such as radiation and certain drugs, while
disruption of circadian rhythms due to shift work could also be a factor,
Dr. Helen Dimich-Ward of the University of British Columbia in Vancouver
and her colleagues suggest.
The researchers reviewed mortality data for the 58,125 RNs working in
British Columbia from 1974 to 2000, most of whom were women. Because the
number of male RNs was too small to produce statistically valuable data,
the researchers didn't include them in their analysis.
Overall, the researchers found that the RNs were 39 percent less likely to
die during the course of the study than individuals in the general
population. They also had a lower risk of death from a number of specific
causes, including heart disease, stroke and cancer in general.
The subgroup of nurses who had been on the job for at least 15 years had a
significantly increased risk of malignant melanoma and rectal cancer.
Those who had been in the profession for 25 years or longer had an
increased risk of breast and lung cancer compared with those who had been
working in nursing for less than 5 years.
"Further investigations are needed to determine whether increased cancer
risk among female RNs can be attributed to occupational exposures," the
researchers conclude.
.
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