Objectives. This study empirically examined whether dimensions of care cluster in special care units (SCUs) compared with non-SCUs. The relationship between SCU status plus separate measures of the dimensions of care and outcomes for dementia sufferers was then investigated.Methods. Data were drawn from the Intermediate Care Facility Project. The sample ( N ϭ 510) included residents with dementia, aged 65 and older, in intermediate care facilities throughout the province of British Columbia, Canada. Longitudinal data included 6 outcomes: cognitive function, behavioral problems of agitation and social skills, physical functioning, and quality of life measured through affect and expressive language skills. Separate multiple linear regression equations were estimated, relating each of these outcomes to 5 dimensions of care: preadmission and admission procedures, staff training and education, nonuse of physical and chemical restraints, flexible care routines and residentrelevant activities, and the environment.
Results.The results showed there is virtually no clustering of dimensions along SCU/non-SCU lines. Neither SCU status nor the individual dimensions were highly predictive of outcomes. Residents' affect at t 1 emerged as a characteristic that was significantly correlated with other outcomes.Discussion. This Canadian research can be added to the few but growing number of rigorous studies that suggest SCUs are not homogeneous and do not necessarily provide better care than non-SCUs. Moreover, it raises questions about the benefits of "best practice" dimensions of care, regardless of SCU status.S the demographic shift continues, the proportion of elderly persons and of old elderly persons in society is increasing. The risk of dementia rises rapidly with age among the oldest age groups, and thus the number of individuals with more severe levels of dementia has increased. Long-term care facilities, as a result, now tend to house higher proportions of residents who suffer from advanced dementia than was true in the past. To meet this demand, providers of care have of necessity been experimenting with management in this area. This experimentation has resulted in the identification, rethinking, and implementation of several dimensions of care , such as assessment and care planning, staff training, flexible care routines, individualized care plans, and the environmental setting.It is commonly thought that such dimensions of care, adequately implemented and in the right combination, will result in optimal outcomes for residents suffering from dementia (Holmes et al., 1994). Although these dimensions of care are in theory expected to result in superior outcomesand thus have become the philosophy behind the creation of special care units (SCUs)-their effects on outcomes are not fully known. In this study we empirically examined whether such "best practices" dimensions of care or a subset of them are, in fact, more likely to be implemented within SCUs. We also examined whether specific dimensions or combinations of dimensi...