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To identify specific care management activities within a dementia care management intervention that are associated with 18-month change in caregiver mastery and relationship strain.Exploratory analysis, using secondary data (care management processes and caregiver outcomes) from the intervention arm of a clinic-level randomized, controlled trial of a dementia care management quality improvement program.Nine primary care clinics in three managed care and fee-for-service southern California healthcare organizations.Two hundred thirty-eight pairs: individuals with dementia and their informal, nonprofessional caregivers.Care management activity types extracted from an electronic database were used as predictors of caregiver mastery and relationship strain, which were measured through mailed surveys. Multivariable linear regression models were used to predict caregiver mastery and relationship strain.For each care manager home environment assessment, caregiver mastery increased 4 points (range 0-100, mean+/-standard deviation 57.1+/-26.6, 95% confidence interval (CI)=2.4-5.7; P=.001) between baseline and 18 months. For every action linking caregivers to community agencies for nonspecific needs, caregiver mastery decreased 6.2 points (95% CI=-8.5 to -3.9; P.001). No other care management activities were significantly associated with this outcome, and no specific activities were associated with a change in caregiver relationship strain.Home assessments for specific needs of caregivers and persons with dementia are associated with improvements in caregivers' sense of mastery. Future work is needed to determine whether this increase is sustained over time and decreases the need for institutionalization.

To describe the quality of dementia care within one U.S. metropolitan area and to investigate associations between variations in quality and patient, caregiver, and health system characteristics.Observational, cross-sectional.Three hundred eighty-seven patient-caregiver pairs from three healthcare organizationsUsing caregiver surveys and medical record abstraction to assess 18 dementia care processes drawn from existing guidelines, the proportion adherent to each care process was calculated, as well as mean percentages of adherence aggregated within four care dimensions: assessment (6 processes), treatment (6 processes), education and support (3 processes), and safety (3 processes). For each dimension, associations between adherence and patient, caregiver, and health system characteristics were investigated using multivariable models.Adherence ranged from 9% to 79% for the 18 individual care processes; 11 processes had less than 40% adherence. Mean percentage adherence across the four care dimensions was 37% for assessment, 33% for treatment, 52% for education and support, and 21% for safety. Higher comorbidity was associated with greater adherence across all four dimensions, whereas greater caregiver knowledge (in particular, one item) was associated with higher care quality in three of four care dimensions. For selected dimensions, greater adherence was also associated with greater dementia severity and with more geriatrics or neurologist visits.In general, dementia care quality has considerable room for improvement. Although greater comorbidity and dementia severity were associated with better quality, caregiver knowledge was the most consistent caregiver characteristic associated with better adherence. These findings offer opportunities for targeting low quality and suggest potential focused interventions.