Journal of the American Geriatrics Society · 2013
Angiotensin system-blocking medications are associated with fewer falls over 12 months in community-dwelling older people.
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Wong Alfred K W, Lord Stephen R, Sturnieks Daina L, Delbaere Kim, Trollor Julian N, Close Jacqueline C T
Аннотация
OBJECTIVES: To investigate relationships between the use of cardiovascular medications, including angiotensin system-blocking medications (ASBMs), orthostatic hypotension (OH), fall risk, and falls in community-dwelling older people.
DESIGN: Prospective cohort study.
SETTING: Sydney, Australia.
PARTICIPANTS: Five hundred twenty community-dwelling older adults.
MEASUREMENTS: Medical, medication and falls history were obtained from a standardized questionnaire in all participants. Blood pressure was measured in supine, seated, and tilted positions. Fall risk was assessed using the Physiological Profile Assessment (PPA). Falls data were collected prospectively for 12 months using monthly fall calendars. Participants were defined as nonfallers (no falls) and fallers (≥ 1 falls) at the end of the 12-month follow-up.
RESULTS: Participants taking medications affecting the angiotensin system had greater quadriceps strength, but after adjusting for sex, this difference became insignificant. People taking ASBMs were less likely to fall (odds ratio = 0.68, 95% confidence interval = 0.48-0.97), and the association between ASBMs and falls remained significant after adjusting for sex, body mass index, PPA score, and psychotropic medication and 3-hydroxy-3-methyl-glutaryl-coenzyme A reductase inhibitor (statin) use. OH was more frequently observed in participants taking alpha adrenergic receptor blockers (α-blockers), but the presence of OH did not increase fall risk.
CONCLUSION: The use of cardiovascular medications in older people did not increase the risk of falls, and the use of ASBMs was associated with lower fall risk. The mechanisms for this apparent protective effect are unclear and appear not to be directly related to muscle strength. More research is required to elucidate the possible protective effects of certain cardiovascular medications in relation to falls in older people.
DESIGN: Prospective cohort study.
SETTING: Sydney, Australia.
PARTICIPANTS: Five hundred twenty community-dwelling older adults.
MEASUREMENTS: Medical, medication and falls history were obtained from a standardized questionnaire in all participants. Blood pressure was measured in supine, seated, and tilted positions. Fall risk was assessed using the Physiological Profile Assessment (PPA). Falls data were collected prospectively for 12 months using monthly fall calendars. Participants were defined as nonfallers (no falls) and fallers (≥ 1 falls) at the end of the 12-month follow-up.
RESULTS: Participants taking medications affecting the angiotensin system had greater quadriceps strength, but after adjusting for sex, this difference became insignificant. People taking ASBMs were less likely to fall (odds ratio = 0.68, 95% confidence interval = 0.48-0.97), and the association between ASBMs and falls remained significant after adjusting for sex, body mass index, PPA score, and psychotropic medication and 3-hydroxy-3-methyl-glutaryl-coenzyme A reductase inhibitor (statin) use. OH was more frequently observed in participants taking alpha adrenergic receptor blockers (α-blockers), but the presence of OH did not increase fall risk.
CONCLUSION: The use of cardiovascular medications in older people did not increase the risk of falls, and the use of ASBMs was associated with lower fall risk. The mechanisms for this apparent protective effect are unclear and appear not to be directly related to muscle strength. More research is required to elucidate the possible protective effects of certain cardiovascular medications in relation to falls in older people.