Conclusion
There is a high incidence of polypharmacotherapy among older hospitalised adults. Our study clearly demonstrates that polypharmacotherapy and cumulative ACB score are significantly positively associated with increased incidence of falls. Furthermore, the presence of polypharmacotherapy and each unit rise in ACB score have a stronger effect of increasing falls risk when compared to age and comorbidity. ACB and polypharmacotherapy are modifiable risk factors, and our findings strongly support deprescribing when possible to prevent falls and improve outcomes in older adults.