Diversity in fall characteristics hampers effective prevention: the precipitants, the environment, the fall and the injury

Osteoporos Int. 2017 Oct;28(10):3005-3015. doi: 10.1007/s00198-017-4145-6. Epub 2017 Jul 19.

Abstract

Falls among the elderly are common and characteristics may differ between injurious and non-injurious falls. Among 887 older Australian women followed for 1.6 years, 32% fell annually. Only 8.5% resulted in fracture and/or hospital admission. The characteristics of those falls are indistinguishable from those not coming to medical attention.

Introduction: The precipitants and environment of all falls occurring among a large cohort of older Caucasian women were categorised by injury status to determine if the characteristics differed between injurious and non-injurious falls.

Methods: Among 887 Australian women (70+ years), falls were ascertained using monthly postcard calendars and a questionnaire was administered for each fall. Hospital admissions and fractures were independently confirmed.

Results: All falls were reported for a mean observation time of 577 (IQR 546-607) days per participant, equating to a total 1400 person-years. Thirty-two percent fell at least once per year. The most common features of a fall were that the faller was walking (61%) at home (61%) during the day (88%) and lost balance (32%). Only 12% of all falls occurred at night. Despite no difference in the type of injury between day and night, the likelihood of being hospitalised from a fall at night was 4.5 times greater than that of a daytime fall with adjustment for injury type and participant age (OR 4.5, 95% CI 2.1, 9.5; p < 0.001). Of all falls, approximately one third were associated with no injury to the faller (31%), one third reported a single injury (37%) and one third reported more than one injury (32%). In 95% of falls, the faller was not admitted to hospital. Only 5% of falls resulted in fracture(s).

Conclusions: Our findings demonstrate the significant diversity of precipitants and environment where falls commonly occur among older community-dwelling women. Falls resulting in fracture and/or hospital admission collectively represent 8.5% of all falls and their characteristics are indistinguishable from falls not coming to medical attention and incurring no apparent cost to the health system.

Keywords: Fall; Fall environment; Fall injury precipitants; Fracture; Older women.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Accidental Falls / prevention & control*
  • Accidental Falls / statistics & numerical data
  • Accidents, Home / statistics & numerical data
  • Aged
  • Aged, 80 and over
  • Environment
  • Female
  • Follow-Up Studies
  • Fractures, Bone / epidemiology
  • Fractures, Bone / etiology
  • Fractures, Bone / therapy
  • Hospitalization / statistics & numerical data
  • Humans
  • Independent Living / injuries
  • Independent Living / statistics & numerical data
  • Patient Acceptance of Health Care / statistics & numerical data
  • Prevalence
  • Risk Factors
  • Victoria / epidemiology
  • Wounds and Injuries / epidemiology
  • Wounds and Injuries / etiology*
  • Wounds and Injuries / therapy