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American Journal of Alzheimer's Disease and Other Dementias logoLink to American Journal of Alzheimer's Disease and Other Dementias
. 2002 Mar-Apr;17(2):73–78. doi: 10.1177/153331750201700210

Co-morbidity associated with dementia

Maureen Sanderson 1, Jing Wang, Dorothy R Davis, Marcia J Lane, Carol B Cornman, Mary K Fadden 2
PMCID: PMC10833666  PMID: 11954672

Abstract

Purpose: The purpose of this study was to identify common co-morbid conditions associated with dementia subtypes and to evaluate the association of hypertension, diabetes mellitus, atrial fibrillation, congestive heart failure, and anemia with dementia subtypes relative to controls.

Methods: Hospital discharge data were used to identify 15,013 subjects from South Carolina with a diagnosis of dementia between 1998 and 1999. A control group of 15,013 persons without dementia was randomly sampled from hospital discharge records and matched to persons with dementia on the basis of age, race, and gender. Multiple hospitalizations for each patient were merged, and repeated diagnoses during separate hospitalizations were counted once.

Results: After adjusting for age, race, and gender, persons with Alzheimer's disease and dementia associated with medical conditions were less likely to be diagnosed with hypertension, diabetes, congestive heart failure, and atrial fibrillation than were controls. Patients with multiinfarct dementia were also less likely to have congestive heart failure, but were more likely to have diabetes. Anemia was not associated with any dementia subtype.

Conclusions: There are distinct differences in comorbid conditions among dementia subtypes. Our research does not support previous studies that suggest a circulatory component to the development of Alzheimer's disease.

Keywords: Alzheimer's disease, cerebral dementia, co-morbidity, dementia, Huntington's chorea, multiinfarct dementia, organic brain disease, Parkinson's disease, senile dementia

Full Text

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Contributor Information

Maureen Sanderson, Alzheimer's Disease Registry, Norman J. Arnold School of Public Health, University of South Carolina, Columbia, South Carolina; University of Texas School of Public Health at Brownsville, University of Texas-Brownsville, Brownsville, Texas.

Mary K. Fadden, Alzheimer's Disease Registry, Norman J. Arnold School of Public Health, University of South Carolina, Columbia, South Carolina.

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