Abstract
The consumption of medications with anticholinergic activity has been suggested to result in the adverse effects of mental confusion, visual disturbance, and muscle weakness, which may lead to falls. Existing published evidence linking anticholinergic drugs with falls, however, remains weak. This study was conducted to evaluate the relationship between anticholinergic cognitive burden (ACB) and the long-term risk of hospitalization with falls and fractures in a large population study. The dataset comprised information from 25,639 men and women (aged 40–79 years) recruited from 1993 to 1997 from Norfolk, United Kingdom into the European Prospective Investigation into Cancer (EPIC)-Norfolk study. The time to first hospital admission with a fall with or without fracture was obtained from the National Health Service hospital information system. Cox-proportional hazards analyses were conducted to adjust for confounders and competing risks. The fall hospitalization rate was 5.8% over a median follow-up of ~ 19.4 years. The unadjusted incidence rate ratio for the use of any drugs with anticholinergic properties was 1.79 (95% CI 1.66–1.93). The hazard ratios (95% CI) for ACB scores of 1, 2–3, and ≥ 4 compared with ACB = 0 for fall hospitalization were 1.20 (1.09–1.33), 1.42 (1.25–1.60), and 1.39 (1.21–1.60) after adjustment for age, gender, medical conditions, physical activity, and blood pressure. Medications with anticholinergic activity are associated with an increased risk of subsequent hospitalization with a fall over a 19-year follow-up period. The biological mechanisms underlying the long-term risk of hospitalization with a fall or fracture following baseline ACB exposure remains unclear and requires further evaluation.
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Acknowledgements
The EPIC-Norfolk study (https://doi.org/10.22025/2019.10.105.00004) has received funding from the Medical Research Council (MR/N003284/1 and MC-UU_12015/1) and Cancer Research UK (C864/A14136). We are grateful to all the participants who have been part of the project and to the many members of the study teams at the University of Cambridge who have enabled this research.
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The authors Maw Pin Tan, Guo Jeng Tan, Sumaiyah Mat, Robert N. Luben, Nicholas J. Wareham, Kay-Tee Khaw, and Phyo Kyaw Myint have no conflicts of interest that are directly relevant to the content of this work.
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This work was supported by grants from the Medical Research Council and Cancer Research UK. Funders had no role in study design or interpretation of the findings.
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All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee (Norwich Local Research Ethics Committee + 05/Q0101/191) and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
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Tan, M.P., Tan, G.J., Mat, S. et al. Use of Medications with Anticholinergic Properties and the Long-Term Risk of Hospitalization for Falls and Fractures in the EPIC-Norfolk Longitudinal Cohort Study. Drugs Aging 37, 105–114 (2020). https://doi.org/10.1007/s40266-019-00731-3
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DOI: https://doi.org/10.1007/s40266-019-00731-3