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January 1, 2005The Journals of Gerontology Series A

Cross-Sectional and Longitudinal Association Between Antihypertensive Medications and Cognitive Impairment in an Elderly Population

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Why the study?

Do antihypertensive medications reduce cognitive decline in an elderly population?

Population

993 elderly patients followed at a geriatric practice, mean age 76.8 +/- 0.3 years, 74% women, 87% White.

Comparison

Antihypertensive medications vs Nonusers of antihypertensive medications

Design

Cohort

Authors

IHIhab HajjarPreventive CardiologyHCHeath W. CatoeUniversity of MiamiSSSherry SixtaSt. Anthony Hospital

Discussion

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Implication

May reduce cognitive impairment risk in older adults; hypothesis-generating and should not change practice without RCTs.

Key Points

  • This research investigates how antihypertensive medications impact cognitive function in elderly individuals, focusing on differences between medication classes.
  • Reviewed medical records of 993 patients cross-sectionally and 350 longitudinally; mean age 76.8 years.
  • Analyzed demographics, medical histories (including dementia), antihypertensive medication use, and cognitive assessment results (MMSE and CDT).
  • Cross-sectional analysis showed no significant association between antihypertensive use and cognitive assessments (MMSE and CDT; p > 0.05).
  • Longitudinal analysis found that users of antihypertensives experienced less cognitive decline (MMSE: -0.8 vs -5.8 points; p = 0.007; CDT: -0.3 vs -2.2 points; p = 0.002).
  • Antihypertensive use was associated with a 44% lower risk of developing cognitive impairment (odds ratio: 0.56; 95% CI: 0.38 to 0.83; p = 0.004).

Structured PICO

Do antihypertensive medications reduce cognitive decline in an elderly population?

P
Population
993 elderly patients (cross-sectional sample, 350 longitudinal) followed at a geriatric practice, mean age 76.8 +/- 0.3 years, 74% women, 87% White.
I
Intervention
Antihypertensive medications (including diuretics, angiotensin-converting enzyme inhibitors, beta-blockers, and angiotensin receptor blockers)
C
Comparator
Nonusers of antihypertensive medications
O
Outcome
Cognitive function and cognitive decline measured by Mini-Mental Status Examination (MMSE), Clock Draw Test (CDT), and dementia diagnosis (Alzheimer's disease or vascular dementia)

Antihypertensive medication use is associated with a lower rate of cognitive decline and reduced risk of cognitive impairment in older adults.

Limitations

  • Observational study design requiring confirmation by randomized clinical trials

Cite This Study

Hajjar et al. (2005) studied this question.

synapsesocial.com/papers/6a20e7d46dd54ee3d3eb23c3https://doi.org/10.1093/gerona/60.1.67
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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Impact of the treatment of isolated systolic hypertension on behavioral variables. Results from the systolic hypertension in the elderly program1994 · 251 citations
  2. 2Impairment of Memory Function by Antihypertensive Medication1983 · 142 citations
  3. 3Study of the Association between Alzheimer’s Disease and Angiotensin-Converting Enzyme Gene Polymorphism Using DNA from Lymphocytes2002 · 50 citations
  4. 4Preservation of Cognitive Function With Antihypertensive Medications2002 · 149 citations
  5. 5The role of blood pressure in cognitive impairment in an elderly population1997 · 133 citations