Relationship between Blood Pressure and Impairment of Cognitive Function In Some Rural Residents Aged 60-64.
- Author:
Choong Won LEE
1
;
Moo Sik LEE
;
Jong Chan CHUN
Author Information
1. Department of Preventive Medicine, Keimyung University College of Medicine.
- Publication Type:Original Article
- Keywords:
Blood pressure;
Cognitive function
- MeSH:
Aged;
Alcoholics;
Blood Pressure*;
Body Mass Index;
Drinking;
Female;
Humans;
Logistic Models;
Male;
Odds Ratio;
Smoke;
Smoking;
Sphygmomanometers
- From:Korean Journal of Preventive Medicine
2000;33(2):208-214
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
OBJECTIVES: Face-to-face interviews were conducted to investigate the relationship between blood pressure and the impairment of cognitive function in rural elderly (N=932) aged 60-64 in Dalsung County, April to September in 1996 METHODS: Impairment of cognitive function was defined as a score of less than 23 by the Korean version of the Mini-Mental State Examination (MMSEK). Blood pressure was measured once in each subject using a portable automatic sphygmomanometer. RESULTS: By univariate logistic regression on males, no category of systolic blood pressure bore statistical significance. Groups with diastolic blood pressures of, less than 80 mmHg, 90-94 mmHg, and more than 95mmHg had odds ratios of more than one compared with the reference group (80-89 mmHg). This was most significant in the group with blood pressures lower than 80 mmHg, which had a statistically significant odds ratio of 1.68 (95 % confidence interval Cl; 1.02-2.75). No category of blood pressure was statistically significant in females. Multivariate logistic regression for males, with adjustment for age, educational attainment, smoking, alcoholic drinking, body mass index, atherosclerotic disease, and antihypertensive medication use, did not alter the odds ratios significantly in terms of systolic blood pressure. However, the group with diastolic blood pressure of less than 80 mmHg had an increased odds ratio of 2.01 (95 % Cl; 1.15-3.52) compared with the reference group. In females, systolic blood pressure did not alter the odds ratio, but the group with a diastolic blood pressure of less than 80 mmHg had a statistically significant odds ratio of 0.57 (95% Cl; 0.37-0.89). CONCLUSIONS: These results suggest that the relationship between blood pressure and cognitive function status is stronger diastolic than systolic blood pressure and that there is a complex relationship between blood pressure and cognitive function by sex.
