[Need for help and nursing care in the elderly of the new German territories: results of a Leipzig long-term study of the elderly population (LEILA75+)]

Effectiveness of preventive home visits in reducing the risk of falls in old age: a randomized controlled trial

Background

Falls in older people are a major public health issue, but the underlying causes are complex. We sought to evaluate the effectiveness of preventive home visits as a multifactorial, individualized strategy to reduce falls in community-dwelling older people.

Methods

Data were derived from a prospective randomized controlled trial with follow-up examination after 18 months. Two hundred and thirty participants (≥80 years of age) with functional impairment were randomized to intervention and control groups. The intervention group received up to three preventive home visits including risk assessment, home counseling intervention, and a booster session. The control group received no preventive home visits. Structured interviews at baseline and follow-up provided information concerning falls in both study groups. Random-effects Poisson regression evaluated the effect of preventive home visits on the number of falls controlling for covariates.

Results

Random-effects Poisson regression showed a significant increase in the number of falls between baseline and follow-up in the control group (incidence rate ratio 1.96) and a significant decrease in the intervention group (incidence rate ratio 0.63) controlling for age, sex, family status, level of care, and impairment in activities of daily living.

Conclusion

Our results indicate that a preventive home visiting program can be effective in reducing falls in community-dwelling older people.

Growing old at home - a randomized controlled trial to investigate the effectiveness and cost-effectiveness of preventive home visits to reduce nursing home admissions: study protocol [NCT00644826]

Background

Regarding demographic changes in Germany it can be assumed that the number of elderly and the resulting need for long term care is increasing in the near future. It is not only an individual's interest but also of public concern to avoid a nursing home admission. Current evidence indicates that preventive home visits can be an effective way to reduce the admission rate in this way making it possible for elderly people to stay longer at home than without home visits. As the effectiveness and cost-effectiveness of preventive home visits strongly depends on existing services in the social and health system existing international results cannot be merely transferred to Germany. Therefore it is necessary to investigate the effectiveness and cost-effectiveness of such an intervention in Germany by a randomized controlled trial.

Methods

The trial is designed as a prospective multi-center randomized controlled trial in the cities of Halle and Leipzig. The trial includes an intervention and a control group. The control group receives usual care. The intervention group receives three additional home visits by non-physician health professionals (1) geriatric assessment, (2) consultation, (3) booster session.

The nursing home admission rate after 18 months will be defined as the primary outcome. An absolute risk reduction from a 20% in the control-group to a 7% admission rate in the intervention group including an assumed drop out rate of 30% resulted in a required sample size of N = 320 (n = 160 vs. n = 160).

Parallel to the clinical outcome measurement the intervention will be evaluated economically. The economic evaluation will be performed from a society perspective.

Discussion

To the authors' knowledge for the first time a trial will investigate the effectiveness and cost-effectiveness of preventive home visits for people aged 80 and over in Germany using the design of a randomized controlled trial. Thus, the trial will contribute to the existing evidence on preventive home visits especially in Germany.

Stürze bei älteren Erwachsenen: Risikofaktoren – Assessment – Prävention

Zusammenfassung. Stürze gehören zu den häufigsten und komplexesten geriatrischen Syndromen. Sie tragen nicht nur zu einem beträchtlichen Anteil zur erhöhten Krankheits- und Sterberate bei, sondern auch zu funktionalen Einbußen, der Angst erneut zu stürzen sowie der frühzeitigen Einweisung in das Pflegeheim. Es lassen sich zahlreiche Ursachen und Risikofaktoren für Stürze benennen, die die Diagnose, Behandlung und Prävention zu einer schwierigen Herausforderung werden lassen. In den letzten Jahren wurde seitens der Forschung als auch der Gesundheitsversorgung das Augenmerk verstärkt auf die Identifikation effektiver Interventionen zur Vermeidung von Stürzen bzw. sturzbedingten Verletzungen bei älteren Erwachsenen gelegt. So gibt es eine ganze Anzahl randomisierter, kontrollierter Studien und systematische Reviews, die der Frage nach der günstigsten Kombination von Interventionen zur Sturzprävention nachgehen. In diesem Beitrag wird ein kurzer Überblick über die Epidemiologie von Stürzen, deren Hauptursachen und Risikofaktoren, Assessmentverfahren sowie verschiedene Interventionstypen gegeben. Abschließend werden Ergebnisse zur Effektivität eben dieser Intervention vorgestellt.

Limitations in activities of daily living and instrumental activities of daily living capacity in a representative sample: disentangling dementia- and mobility-related effects

A representative sample of the Leipzig population aged 75 years and older showed 61.8% of the participants with relevant deficits in their capacity for independent living, according to a combined activities of daily living/instrumental activities of daily living (ADL/IADL) scale. The quantity and quality of care needed almost exponentially increases above 85 years of age. Looking at potential reasons for ADL/IADL limitations, 44% of variance in single ADL/IADL activities and 75% of the combined ADL/IADL sum score could come from a minimal set of predictor variables. Most important are dementia- or mobility-related declines, but living conditions also explain small but significant amounts of variance. These seem initially impressive, yet analyses showed about half the explained variances shared among the mobility and dementia indicators, limiting the use not only of ADL/IADL sum scores but of many single ADL/IADL items as well. Before deriving specific conclusions from variations in ADL/IADL instruments, one must note that the data suggest that interpretations of covariations--whether for health/mobility or dementia--are useful and substantial only if both indicators/predictors are verified. The information given captures the mobility- and dementia-related variance if ADL/IADL items, facilitating more specific scale developments.