Citation

Muir SW, Berg K, Chesworth B, Klar N, Speechley M. Phys. Ther. 2010; 90(3): 338-347.

Affiliation

Department of Medicine, Division of Geriatric Medicine, Schulich School of Medicine and Dentistry, University of Western Ontario, Parkwood Hospital, Room A-283, 801 Commissioners Rd East, London, Ontario, Canada N6C 5J1.

Copyright

(Copyright © 2010, American Physical Therapy Association)

DOI

10.2522/ptj.20090163

PMID

20056721

Abstract

Screening should have simple and easy-to-administer methods that identify impairments associated with future fall risk, but there is a lack of literature supporting validation for their use. Objective The aim of this study was to evaluate the independent contribution of balance assessment on future fall risk, using 5 methods to quantify balance impairment, on the outcomes "any fall" and "any injurious fall" in community-dwelling older adults who are higher functioning. Design This was a prospective cohort study. METHODS: A sample of 210 community-dwelling older adults (70% male, 30% female; mean age=79.9 years, SD=4.7) received a comprehensive geriatric assessment at baseline, which included the Berg Balance Scale to measure balance. Information on daily falls was collected for 12 months by each participant's monthly submission of a falls log calendar. RESULTS: Seventy-eight people (43%) fell, of whom 54 (30%) sustained an injurious fall and 32 (18%) had recurrent falls (>/=2 falls). Different balance measurement methods identified different numbers of people as impaired. Adjusted relative risk (RR) estimates for an increased risk of any fall were 1.58 (95% confidence interval CI.=1.06, 2.35) for self-report of balance problems, 1.58 (95% CI=1.03, 2.41) for one-leg stance, and 1.46 (95% CI=1.02, 2.09) for limits of stability. An adjusted RR estimate for an increased risk of an injurious fall of 1.95 (95% CI=1.15, 3.31) was found for self-report of balance problems. Limitations The study was a secondary analysis of data. CONCLUSIONS: Not all methods of evaluating balance impairment are associated with falls. The number of people identified as having balance impairment varies with the measurement tool; therefore, the measurement tools are not interchangeable or equivalent in defining an at-risk population. The thresholds established in this study indicate individuals who should receive further comprehensive fall assessment and treatment to prevent falls.

Language: en