Impact of dual sensory impairment on onset of behavioral symptoms in European nursing homes: results from the Services and Health for Elderly in Long-Term Care study.

OBJECTIVES: To investigate if dual sensory impairment (DSI) in the form of a combined visual and hearing impairment is associated with the onset of behavioral symptoms in nursing homes.

METHODS: A total of 1524 nursing home residents without behavioral symptoms at baseline followed for 12 months in 59 nursing homes from the Czech Republic, England, Finland, France, Germany, Israel, Italy, and The Netherlands. The interRAI instrument for long-term care facilities was assessed by trained staff at baseline and 12 months later.

RESULTS: Altogether, 11% of residents had a new onset of behavioral symptoms (wandering, verbal abuse, physical abuse, socially inappropriate behavior, public disrobing, and resisting care) at 12-month follow-up. In multivariate analyses adjusted for potential confounders, DSI residents had significantly higher incidence of new behavioral symptoms at 12-month follow-up, irrespective of the severity of vision and hearing impairments [odds ratio (OR) = 2.1, 95% confidence interval (CI) = 1.3:3.4 for mild DSI, OR = 2.5, 95% CI = 1.6:4.0 for moderate DSI, and OR = 2.1, 95% CI = 1.2:3.7 for severe DSI] compared with residents without sensory impairment. Among the different types of symptoms, only abusive behaviors were less likely to be associated with DSI.

CONCLUSIONS: This study provides evidence that DSI could play a significant role in the development of behavioral symptoms in nursing home residents. More attention should be paid to DSI even when each of vision and hearing function is only minimally impaired.