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Relationship between low blood pressure and depressive symptomatology in older people
C A Stroup-Benham1, K S Markides, S A Black
1Center on Aging, and Department of Medicine, University of Texas Medical Branch, Galveston 77555-0664, USA.
Objectives:
To determine if low blood pressure is associated with a definable constellation of somatic and psychological symptoms in older persons.
Design:
A population-based study.
Setting:
In-home interviews in five southwestern states.
Participants:
A total of 2723 Mexican Americans aged 65 or older not living in institutions.
Measures:
Blood pressure, Center for Epidemiologic Studies Depression Scale (CES-D), global self-rating of health, and self-esteem.
Results:
Bivariate analyses indicate a significant relationship between low blood pressure and increased depressive symptomatology; for example, systolic hypotensive subjects scored a CES-D mean of 12.07 +/- .67 compared to 8.99 +/- .95 for normotensives (P < .01). Regression analyses supported these findings when controlling for confounders such as gender, age, and use of antihypertensive medications. Subjects with low blood pressure also scored lower on self-esteem and global self-reported health and reported more days waking up feeling tired.
Conclusions:
These data support the existence of a relationship between low blood pressure and higher levels of depressive symptomatology as well as a constellation of somatic and psychosocial symptoms.