Mismatch of Subjective and Objective Risk of Falling in Patients with Dementia

The Impact of Misaligned Perceived and Objective Fall Risk in Cognitively Impaired Older People

Background

Cognitive impairment (CI) may impair the ability to accurately perceive physical capacity and fall risk.

Objective

We investigated perceived (measured as concern about falls) and physiological fall risk in community-dwelling older people with CI, the characteristics of the aligned and misaligned groups and the impact of misaligned perceptions on falls.

Methods

Participants (n= 293) with mild-moderate CI were classified into four groups based on validated physiological and perceived fall risk assessments: 1) vigorous: low perceived and physiological fall risk; 2) anxious: high perceived and low physiological fall risk; 3) unaware: low perceived and high physiological fall risk; and 4) aware: high perceived and physiological fall risk. Groups were compared with respect to neuropsychological and physical function, activity and quality of life measures, and prospective falls (12-months).

Results

The anxious (IRR = 1.70, 95% CI = 1.02-2.84), unaware (IRR = 2.00, 95% CI = 1.22-3.26), and aware (IRR = 2.53, 95% CI = 1.67-3.84) groups had significantly higher fall rates than the vigorous group but fall rates did not significantly differ among these groups. Compared with the vigorous group: the anxious group had higher depression scores and reduced mobility and quality of life; the unaware group had poorer global cognition, executive function and mobility and lower physical activity levels; and the aware group had an increased prevalence of multiple physical and cognitive fall risk factors.

Conclusions

Fall rates were increased in participants who had increased perceived and/or physiological fall risk. Contrasting fall risk patterns were evident in those who under- and over-estimated their fall risk. Understanding these characteristics will help guide fall risk assessment and prevention strategies in community-dwelling older people with CI.

Why should clinical practitioners ask about their patients' concerns about falling?

Concerns (or 'fears') about falling (CaF) are common in older adults. As part of the 'World Falls Guidelines Working Group on Concerns about Falling', we recommended that clinicians working in falls prevention services should regularly assess CaF. Here, we expand upon these recommendations and argue that CaF can be both 'adaptive' and 'maladaptive' with respect to falls risk. On the one hand, high CaF can lead to overly cautious or hypervigilant behaviours that increase the risk of falling, and may also cause undue activity restriction ('maladaptive CaF'). But concerns can also encourage individuals to make appropriate modifications to their behaviour to maximise safety ('adaptive CaF'). We discuss this paradox and argue that high CaF-irrespective of whether 'adaptive' or 'maladaptive'-should be considered an indication that 'something is not right', and that is represents an opportunity for clinical engagement. We also highlight how CaF can be maladaptive in terms of inappropriately high confidence about one's balance. We present different routes for clinical intervention based on the types of concerns disclosed.

Adult Inpatients’ Perceptions of Their Fall Risk: A Scoping Review

Patient falls in hospitals continue to be a global concern due to the poor health outcomes and costs that can occur. A large number of falls in hospitals are unwitnessed and mostly occur due to patient behaviours and not seeking assistance. Understanding these patient behaviours may help to direct fall prevention strategies, with evidence suggesting the need to integrate patients’ perspectives into fall management. The aim of this scoping review was to explore the extent of the literature about patients’ perceptions and experiences of their fall risk in hospital and/or of falling in hospital. This review was conducted using a five-stage methodological framework recommended by Arksey and O’Malley. A total of nine databases were searched using key search terms such as “fall*”, “perception” and “hospital.” International peer-reviewed and grey literature were searched between the years 2011 and 2021. A total of 41 articles, ranging in study design, met the inclusion criteria. After reporting on the article demographics and fall perception constructs and measures, the qualitative and quantitative findings were organised into five domains: Fall Risk Perception Measures, Patients’ Perceptions of Fall Risk, Patients’ Perceptions of Falling in Hospital, Patients’ Fear of Falling and Barriers to Fall Prevention in Hospital. Approximately two-thirds of study participants did not accurately identify their fall risk compared to that defined by a health professional. This demonstrates the importance of partnering with patients and obtaining their insights on their perceived fall risk, as this may help to inform fall management and care. This review identified further areas for research that may help to inform fall prevention in a hospital setting, including the need for further research into fall risk perception measures.

A Safe Mobilisation Program to Improve Functional Mobility and Reduce Fall Risks in Cognitively Impaired Older Adults with Higher Level Gait Disorders: A Pilot Study

BACKGROUND

The association between gait and cognition, and their combined impact on postural stability may underlie the increased fall risk in older adults with dementia. However, there are few interventions to improve functional mobility and reduce fall risks in people with cognitive impairment.

OBJECTIVES

This study aims to investigate the feasibility and acceptability of a Safe Mobilisation Program for cognitively impaired older adults with higher level gait disorders. It also explores the potential effectiveness of the program on mobility and fall risks.

METHODS

Fifteen community-dwelling older adults participated in a 3-week pre-post intervention study. They were trained to take steady steps in transfers and mobilization using errorless learning and spaced retrieval teaching techniques.

RESULTS

The intervention program was feasible, all the participants completed the program and were able to mobilize safely. The program was acceptable and participants reported an increase in safety awareness, improvement in confidence while transferring and mobilising, and better quality of life. There was a trend of improvement in Falls Efficacy Scale-international (FES-I), 360° turn and Tinetti Performance Oriented Mobility Assessment (POMA), which may indicate improvement in balance and mobility.

CONCLUSION

The Safe Mobilisation Program was feasible and acceptable in older adults with cognitive impairment and gait disorders and warrants further evaluation.