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Gene Feder a Department of General Practice and Primary Care, St
Bartholomew's and Royal London Medical School, Queen Mary and
Westfield College, London E1 4NS, b Centre for Health Services Studies,
University of Kent, Tunbridge Wells, Kent TN3 0TG
Correspondence to: G Feder g.s.feder{at}mds.qmw.ac.uk
Older people frequently fall. This is a serious public
health problem, with a substantial impact on health and healthcare costs.1 These guidelines translate trial evidence about
prevention of falls into recommendations that can be implemented in
different settings, with the aim of reducing the rate of falls and
injurious falls in people over 65 (see
boxes
2 3
).
We updated two previous systematic reviews to include any
new evidence up to March 1998.
4 5
We
electronically searched Medline for all randomised controlled trials
and systematic reviews by using the terms fall(s), accidental falls,
fracture, elderly, aged, older, and senior. We followed up relevant
references in papers, and we contacted researchers in prevention of
falls for information about other trial evidence and about studies from journals not catalogued by the National Library of Medicine. For inclusion, studies had to be randomised controlled trials of
interventions designed to minimise or prevent exposure to the risk
factors for falling (or fracture) in people aged 65 years or over
living in either community or residential care. Outcomes had to
include the number of people who had fallen or the number of falls or fractures. We excluded drug or dietary treatments for the prevention of
fractures. Trials that fulfilled the inclusion criteria were reviewed
and summarised by one of three reviewers. Evidence statements were
drafted for each type of intervention. We assigned a methodology quality score to the trials according to the criteria used for the
relevant Cochrane review, with the addition of sample
size.4 Evidence statements were graded according to the
quality score and sample size. The grade of evidence was based on three
categories originally developed for the national guidelines for acute
back pain.6
A fall is a sudden, unintentional change in position causing an
individual to land at a lower level, on an object, the floor, or the
ground, other than as a consequence of sudden onset of paralysis,
epileptic seizure, or overwhelming external force2
Summary points
Multifaceted interventions reduce falls in older people (those
over 65)
Home assessment of older people at risk of falls without referral or
direct intervention is not recommended
Assessment of high risk residents in nursing homes with relevant
referral is effective
Evidence from well designed single trials shows that assessment and
modification of risk factors of older people who have presented to an
accident and emergency department after a fall and the provision of hip
protectors in residents of nursing homes are effective
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Methods
Definition of a fall
Recommendations were made and graded by the development group, incorporating the strength of evidence with the additional considerations of applicability to, and feasibility within, health and social care in the United Kingdom. A recommendation can have a lower but not higher grade than the linked evidence statement.7
A multidisciplinary development group met to discuss the scope of the guidelines and the evidence review, to consider subsequently evidence summaries and possible recommendations, and to review finally recommendations in the light of reviewers' comments. The absence of a physiotherapist or exercise specialist in the development group was partly mitigated by their inclusion among the reviewers.
|
Target groups for guidelines
Care professionals Staff working within a primary, community, accident and emergency, or residential care setting (for example, general practitioners, physicians and health visitors caring for elderly patients, accident and emergency staff, practice nurses, community psychiatric nurses, care managers, social workers, residential care workers) Clients Ambulant people over 65 living either at home, in a residential home, or in a nursing home (patients in hospital and bedbound individuals are excluded) As studies on falls exclude patients with severe dementia, our recommendations do not apply to this group3 |
To test the acceptability of the guidelines to potential users and
their feasibility in different care settings, we piloted them in two
general practices, a residential home, and a general hospital. Changes
were made to the presentation of the guidelines after the pilot. As
prevention of falls in older people is an active research area, we
recommend that these guidelines are revised by March 2001.
| |
Evidence and recommendations |
|---|
We have grouped evidence and recommendations by type of intervention and the trial settings in which they were tested: exercise interventions alone, multifaceted interventions, and assessment in the community or a residential setting. The recommendations are based on 21 trials. Where trials can be classified into two groups, they are included in both relevant sections.
|
Evidence weighting6
A Consistent findings in multiple randomised controlled trials or a meta-analysis B Single randomised controlled trial or weak inconsistent findings in multiple randomised controlled trials C Limited scientific evidence, cohort studies, flawed randomised controlled trials, panel consensus |
Exercise interventions alone
We identified eight trials of exercise interventions. One trial
studied a series of exercises and training in gait and transfers in
semi-independent residents of long stay nursing homes, but showed no
reduction in the rate of falls among this high risk group.8 Another trial studied individually tailored
programmes of physical therapy for women over 80 and found a
significant reduction in the rate of falls.9 In another
trial, three different types of supervised exercise were devised for
people with mild deficits in strength and balance.10 When
the results from all three groups were combined, the risk of falls was reduced.
|
Grading of recommendations6
*** Directly based on grade A evidence ** Directly based on grade B evidence or extrapolated recommendation from grade A evidence * Directly based on grade C evidence or extrapolated from grade A or B evidence |
Evidence statements
Unselected groups
most exercise programmes without
other interventions do not reduce the incidence of falls in unselected
older people living in the community. (Evidence weighting A, see box.)
individually tailored
exercise programmes administered by a qualified professional reduce the incidence of falls in a selected high risk group living in the community. (B)
Selected group (mild deficits in strength and
balance)
exercise programmes reduce the risk of falls in a
selected group of older people living in the community. (C)
Balance training
T'ai chi classes with individual tuition
can reduce the number of falls in older people. (B)
Recommendations
Unselected groups
with the possible exception of
training in balance (t'ai chi), exercise programmes for prevention of
falls in unselected older people living in the community should not be
established. (Grading for recommendations ***, see box.)
individually tailored exercise
programmes administered by qualified professionals targeted at the over
80s should be established. (**) Exercise programmes targeted at older people with mild deficits in strength, balance, lower extremity strength, and range of motion should be established. (*)
T'ai chi classes with individual instruction should be offered to
unselected older people living in the community. (**)
Multifaceted interventions
Five trials tested multifaceted interventions. One trial combined
exercise sessions, daily walks, a home assessment with safety
improvements, and group teaching sessions on prevention of
falls.18 A decrease in falls occurred within the
intervention group but there were no differences in the number of falls
requiring medical care. Tinetti et al targeted high risk patients and
combined an assessment by nurse practitioners and physiotherapists with interventions targeted at several risk factors.19 The rate
of falls was substantially reduced. Further analysis showed that interventions aimed at postural hypotension, gait, balance, transfers, and strength and range of motion of the lower extremities were most
associated with a reduced incidence of falls.20 Another trial tested an assessment visit by a nurse, which aimed to increase physical and social activity.21 A significant reduction in
rate of falls one year after the visit was found.
Evidence statements
Programmes that combine interventions (most studies include some
form of exercise) reduce falls. (A, see box for evidence weighting.)
attention to postural
hypotension, number of drugs, balance, transfers, and gait is
particularly effective. (B)
Recommendations
Prioritise programmes for prevention of falls that include more
than one intervention. (***, see box for grading of recommendations.)
prioritise correction of
postural hypotension, rationalisation of drugs where possible, and
interventions to improve balance, transfers, and gait. (**)
Assessment in the community
Six trials addressed the assessment by trained volunteers,
health professionals, or researchers of older people who had fallen or
those at risk in the community. In all but one of the studies,
assessment at home was supplemented by advice and education. One study
identified subjects in an accident and emergency
setting.22
|
Evidence statements
Home assessment 1
home assessment of disability and
education in the risk areas and referral to the patient's doctor
reduces falls. (C, see box for evidence weighting.)
home assessment of risk and education in
these areas without further referral does not reduce falls. (A)
Accident and emergency assessment
identification of
patients who attend accident and emergency departments after falls,
with subsequent assessment of medical and occupational therapy and referral and follow up, reduces falls. (B)
Recommendations
Home based interventions
a programme of medical and
environmental assessment, with client education about risks and with
referrals to relevant healthcare professionals (for example, general
practitioners, occupational therapists) should be established. (*, see
box for grading of recommendations.)
a programme of follow up
for medical and occupational therapy for older people who have presented at accident and emergency departments after a fall should be
established. A structured interdisciplinary approach to their management should be prioritised. (**)
Residential settings
Four trials were based in residential settings: three studied
prevention of falls and one the prevention of fractures with hip
protection. Because the evidence is from "nursing homes," where
residents have different levels of risk and fitness, it is probably
applicable to a wide range of supervised residential settings in the
United Kingdom.
Evidence statements
All residents
non-selective exercise programmes for
residents of nursing homes do not reduce falls. (B, see box for
evidence weighting.)
assessment of residents after falls,
with development of individual treatment plans and staff education, decreases falls. (B)
Hip protectors
neck of femur fractures are prevented by hip
protectors being worn by residents of nursing homes. (B)
Recommendations
All residents
non-selective exercise programmes for
prevention of falls should not be implemented. (**, see box for grading
of recommendations.)
a programme of risk assessment for
residents who have had at least one fall, with referral to their
primary physician for specific preventive measures if necessary, should be established. (**)
Hip protectors
all residents of nursing homes should be
offered hip protectors. (**)
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Conclusion |
|---|
The recommendations in these guidelines are based on a rigorous development method with explicit links to evidence from trials. There are large gaps in this evidence (box). A key methodological problem is the uncertainty of the outcome measures used in most of the trials, as all methods of recording falls have weaknesses. None of the trials included an economic evaluation, although if reduction in falls also results in fewer injurious falls and fractures, then prevention of falls is likely to be cost effective because of the high costs of hospital care. The trial reports rarely have sufficient information about either the characteristics of the sample or the characteristics of the local population and service context in which they took place. It is not clear which components of the multifaceted interventions that were successful are essential, including exercise. Exercise is a non-specific term and can consist of several different elements, including strengthening of muscle and training of balance. A small number of trials showed a reduction in the rate of falls after exercise, but several others showed no significant effect. On the basis of the evidence, we recommend tailored exercise programmes to be targeted at high risk groups and administered by qualified professionals. A recent review identified insufficient duration, intensity, frequency, and specificity and the inclusion of people at low risk of falls as problems with the exercise regimens used in those trials that failed to show an effect.33 This work also made recommendations regarding the most appropriate exercise programme for prevention of falls or fractures.
|
Areas where research is needed
Further trials of hip protectors in different care settings Validation of risk assessment as a guide to intervention Economic evaluations of intervention programmes for falls Evaluation of different components of multifaceted intervention programmes Trials of implementation of programmes for prevention of falls by several agencies |
The guidelines rely on trials outside the United Kingdom.
Furthermore, there are no pragmatic trials testing the implementation of a multifaceted programme for prevention of falls across the diverse
agencies that need to be involved: primary and secondary health care as
well as social and environmental health services. Nevertheless, there
is a body of relatively consistent evidence from which it is possible
to formulate general recommendations about worthwhile interventions at
a local level to reduce the incidence of falls in older people. It is
also possible to highlight interventions that are unlikely to be
effective and should be avoided outside a research context.
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Acknowledgments |
|---|
The development of these guidelines was funded by a grant from the Department of Health (health promotion).
Contributors: CC and YC had the original idea for the development of the guidelines, GF designed and managed the development process, contributed to methodological review of the trials, and wrote the first draft of the paper. SD edited the full version of the guidelines and was one of the reviewers. All authors contributed to the editing of this paper. Sarah Mott and Florence Cason reviewed and summarised details of the trials.
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Footnotes |
|---|
Competing interests: None declared.
Members of the development group
appear on the BMJ's website
| |
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(Accepted 12 June 2000)
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