Association of Antidepressants With Recurrent, Injurious and Unexplained Falls is Not Explained by Reduced Gait Speed

Psychotropic medication use and future unexplained and injurious falls and fracture amongst community-dwelling older people: data from TILDA

PURPOSE

Psychotropic medications (antidepressants, anticholinergics, benzodiazepines, 'Z'-drugs and antipsychotics) are frequently identified as Falls Risk Increasing Drugs. The aim of this study is to clarify the association of psychotropic medication use with future falls/fracture amongst community-dwelling older people.

METHODS

Participants ≥ 65 years from TILDA were included and followed from Waves 1 to 5 (8-year follow-up). Incidence of falls (total falls/unexplained/injurious) and fracture was by self-report; unexplained falls were falls not caused by a slip/trip, with no apparent cause. Poisson regression models reporting incidence rate ratios (IRR) assessed the association between medications and future falls/fracture, adjusted for relevant covariates.

RESULTS

Of 2809 participants (mean age 73 years), 15% were taking ≥ 1 psychotropic medication. During follow-up, over half of participants fell, with 1/3 reporting injurious falls, over 1/5 reporting unexplained falls and almost 1/5 reporting fracture. Psychotropic medications were independently associated with falls [IRR 1.15 (95% CI 1.00-1.31)] and unexplained falls [IRR 1.46 (95% CI 1.20-1.78)]. Taking ≥ 2 psychotropic medications was further associated with future fracture (IRR 1.47 (95% CI 1.06-2.05)]. Antidepressants were independently associated with falls [IRR 1.20 (1.00-1.42)] and unexplained falls [IRR 2.12 (95% CI 1.69-2.65)]. Anticholinergics were associated with unexplained falls [IRR 1.53 (95% CI 1.14-2.05)]. 'Z'-drug and benzodiazepine use were not associated with falls or fractures.

CONCLUSION

Psychotropic medications, particularly antidepressants and anticholinergic medications, are independently associated with falls and fractures. Regular review of ongoing need for these medications should therefore be central to the comprehensive geriatric assessment.

Depressive symptoms and falls among Chinese older adults: A bidirectional relationship

BACKGROUND

Falls and depressive symptoms are prevalent and costly. Although they are frequently interrelated, the nature of interrelationships between them was not well understood. Therefore, using longitudinal data, we aimed to explore whether there is a longitudinal bidirectional relationship between falls and depressive symptoms among older Chinese and whether this is different for men and women.

METHODS

Older adults aged 60 years+ who completed all 2011, 2013, 2015 waves of data from the China Health and Retirement Longitudinal Study on falls and depressive symptoms were included (N=2,203). Random intercept multilevel models were used to analyze data.

RESULTS

Significant bidirectional associations at between-person (b=0.09, SE=0.01, p<0.001) and within-person levels (b=0.05, SE=0.02, p=0.005) were observed between depressive symptoms and falls. When participants reported falls, they reported higher levels of depressive symptoms. However, no gender differs in these relationships.

CONCLUSIONS

Regardless of gender, there are significant bidirectional associations between falls and depressive symptoms.