Editor—Ballard et al draw conclusions from observing residents' activities in establishments providing care for people with dementia that few specialist professionals would disagree with: that standards are poor and must be raised.1-1 Their methodology, however, is potentially misleading if service providers use the dementia care index alone as an indicator of improved quality of care.
Dementia care mapping measures the subjective experience of the service user across three dimensions (type of activity, degree of comfort, and time). Standardisation of data is achieved through thorough accredited training, and the dementia care index is derived from aggregation of observations. Typically in our experience, the activity is observed during the working hours of people other than nurses and rarely during early mornings, evenings, and nights.
The paper refers to a standardised six hours of mapping in each home in the study but fails to extrapolate general and relevant data on the quality of the services provided across a 168 hour week. When longitudinal studies have used the dementia care index as a methodological tool it has been to measure the effect of training, empowerment, or other external dynamic factor rather than overall quality of life or care. As experienced managers and clinicians in acute and long stay dementia wards, we would be concerned if the quality of care provided could be generalised from observations in such a period.
Increasing use should not be made of data from dementia care mapping as a comparative indicator of quality of care in units or for individuals. Incorporating a less subjective measure of quality of life to the study design, such as the dementia specific quality of life scale1-2 or a user oriented framework,1-3 would have added to the validity of the authors' findings.
Marshall's editorial highlights several structural and process deficits in places where dementia care is provided.1-4 Externally set standards, expectations, resources, and training are all important in improving care. Each of these factors needs to be incorporated into the scrutiny of care quality for such research to have quantitative conclusions. Dementia care mapping can only presage qualitative discussions within teams.
We would be concerned if care homes began to market their services on the basis of a six hour observed rating, but this may be an outcome of such research methods. Clinicians and service managers need to clarify the minimum standards for care homes for older people.1-5 The tools we use to develop and audit the quality of care must comprehensively reflect the multitude of needs of people with dementia.
References
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1-1.Ballard C, Fossey J, Chithramohan R, Howard R, Burns A, Thompson P, et al. Quality of care in private sector and NHS facilities for people with dementia: cross sectional survey. BMJ. 2001;323:426–427. doi: 10.1136/bmj.323.7310.426. . (25 August.) [DOI] [PMC free article] [PubMed] [Google Scholar]
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1-4.Marshall M. The challenge of looking after people with dementia. BMJ. 2001;323:410–411. doi: 10.1136/bmj.323.7310.410. . (25 August.) [DOI] [PMC free article] [PubMed] [Google Scholar]
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1-5.Department of Health. Care homes for older people. National minimum standards. London: Stationery Office; 2001. [Google Scholar]