WEDNESDAY, March 16 (HealthDay News) -- When nurse staffing
levels fell below target levels in a large hospital, more patients
died, a new study discovered.
The finding may provide guidance in an era of nursing shortages
and cost-cutting, in that the focus should shift from cost to
patient safety, said the authors of the research, appearing in the
March 17 issue of the
New England Journal of Medicine.
"Hospitals need to know what their nursing needs are for their patients, and they need to bring staffing into line," said study senior author Jack Needleman, a professor of health services at the School of Public Health of the University of California Los Angeles.
"Patients are entitled to be safe in the hospital and to have care delivered reliably and to have nurses with enough time to make sure they aren't developing avoidable complications with permanent consequences," Needleman said.
Previous research has suggested that this might be the case, but
many of those studies were dismissed in part because of methodology
"People had thought maybe [adverse consequences] were due to something else, maybe the quality of the nurses, quality of the doctors, technology, equipment or the hospital doesn't have a commitment to quality," Needleman explained.
For this study, the authors looked at almost 200,000 admissions
and about 177,000 nursing shifts at 43 patient units at one
hospital that generally had high staffing targets.
Presumably, different areas of the hospital had the same quality
of nurses, doctors, technology and equipment, thus eliminating
these factors as the source of problems.
Units were considered properly staffed if nursing staffing fell
within eight hours of the target level.
When units were understaffed, patient mortality increased by 2
percent. On average, a patient stayed in the hospital for three
shifts and when they were all understaffed, mortality rose by 6
And when nurses had to work harder because of high patient
turnover on their unit, the mortality risk increased by 4
"A telling outcome is that they looked at a hospital that really had pretty good staffing levels and they still found that there was a difference," said Sharon Wilkerson, dean of the Texas A&M Health Science Center College of Nursing in Bryan. "When I think about the number of hospitals that do not maintain good staffing levels, either because they can't find the nurses or maybe they're rural or they're just aren't as many people they can hire, that's even more frightening."
The authors believe the findings would apply at the very least
to other similar hospitals.
"All hospitals need to have a system to identify what their target nurse staffing is, based on their patient needs, and this will vary from day to day," Needleman said.
Hospitals also need to find ways to manage surges, when more
admissions and transfers send more patients to a particular unit,
said Needleman, who believes these changes are possible.
"Obviously, we need to figure out how to do this better," Wilkerson said. "If the workloads and the turnover of patients are causing problems in terms of negative outcomes for patients, then we need to do a better job of handling that."
The U.S. Agency for Healthcare Research and Quality offers
five steps to safer health care.
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