Cost of Alzheimer's disease

The progressive deterioration associated with Alzheimer's disease (AD) results in high economic cost to the patients, caregivers, and the society as a whole. Cost-of-AD studies conducted over the last decade have produced discrepant results, mainly as a consequence of the different methodologies employed. The present review is an attempt to present the methodology of the cost studies in AD and provide the reader with the tools necessary for a critical assessment of the results.