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Purpose: To explore the association between apathy and health-related quality of life (HRQoL) from resident and proxy perspectives and whether cognition and depression moderate this relationship.Methods: Secondary analyses with baseline data from a cluster randomized trial on the effects of a care program for depression in Nursing Homes (NHs) were conducted. For HRQoL, the Visual Analogue Scale (VAS) and the Dutch version of the European Quality of Life (EQ-5D) were administered to 521 NH residents, and to professional caregivers reporting from the perspective of the NH resident (Resident-Proxy) and from their own perspective (Proxy-Proxy). Utility scores (U) were calculated for the three perspectives. Apathy, depression, and cognition were measured using the 10-item Apathy Evaluation Scale, the Cornell Scale for Depression in Dementia, and the standardized Mini-Mental State Examination, respectively.Results: Mixed models adjusted for clustering within NH units revealed that apathy was negatively associated with HRQoL both from the Resident-Proxy perspective (EQ-5D VAS: estimated effect, - 0.31, P < 0.001; EQ-5D Utility: - 0.30, P < 0.001) and from the Proxy-Proxy perspective (VAS: - 0.29, P < 0.001; U: - 0.03, P < 0.001), but not from the Resident-Resident perspective (VAS: - 0.05, P = 0.423; Utility: - 0.08, P = 0.161). Controlling for depression and cognition and their interaction terms with apathy did not change the results.Conclusion: Apathy is negatively associated with NH resident HRQoL as reported by proxies. Depression and cognitive functioning do not moderate this association. NH residents do not self-report a relationship between apathy and HRQoL. More research is needed to understand caregiver and NH resident attitudes and underlying assumptions regarding apathy and HRQoL. [ABSTRACT FROM AUTHOR]

Objectives To determine the prognostic value of apathy for mortality in patients of somatic ( SC) and dementia special care ( DSC) nursing home ( NH) units. Design Longitudinal design, secondary analyses of a 2-year, cluster-randomized trial with six measurements, approximately 4 months in between. Setting SC and DSC-units of Dutch NHs. Participants NH-patients of seventeen SC-units (n = 342) and sixteen DCS-units (n = 371). Measurements Data were available for 713 NH-patients, 266 of whom died during the study. Apathy was assessed using the 10-item Apathy Evaluation Scale ( AES-10) and applied as categorical variable using known cut-off scores as well as dimensional variable. Additionally, depressive symptoms were assessed using the Cornell Scale for Depression in Dementia. Results Mixed effects cox models using the coxme package in R revealed a higher risk of mortality between two measurements, if apathy was present (hazard ratio ( HR) = 1.77; 95% confidence interval ( CI] = 1.35-2.31, P < .001). Results remained significant ( HR = 1.64; 95% CI = 1.23-2.19, P < .001) when controlled for depressive symptoms. DSC-units and SC-units did not differ ( P > .05) in the effect of apathy on mortality. Male gender ( HR = 1.67; 95% CI = 1.23-2.27, P < .001), and higher age in years ( HR = 1.06; 95% CI = 1.04-1.08, P < .001) were also predictors of mortality. Regarding apathy as a dimensional construct, one standard deviation increase of AES-10 scores was associated with a 62% increase of mortality risk ( HR = 1.62, 95% CI = 1.40-1.88, P < .001). Conclusions Apathy was associated with mortality over a 4-month period in NH patients, even when controlling for depression. These data suggest that screening and treatment strategies for apathy should be developed for this patient population. [ABSTRACT FROM AUTHOR]