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Lower systolic bloo...
Lower systolic blood pressure is associated with greater mortality in people aged 85 and older
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- Molander, Lena, 1983- (author)
- Umeå universitet,Geriatrik
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- Lövheim, Hugo (author)
- Umeå universitet,Geriatrik
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- Norman, Tove (author)
- Umeå universitet,Geriatrik
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- Nordström, Peter (author)
- Umeå universitet,Geriatrik
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- Gustafson, Yngve (author)
- Umeå universitet,Geriatrik
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(creator_code:org_t)
- Wiley, 2008
- 2008
- English.
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In: Journal of The American Geriatrics Society. - : Wiley. - 0002-8614 .- 1532-5415. ; 56:10, s. 1853-1859
- Related links:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Subject headings
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- OBJECTIVES: To investigate the association between blood pressure and mortality in very old people. DESIGN: Population-based cohort study. SETTING: County of Västerbotten, Sweden. PARTICIPANTS: Half of all subjects aged 85 and all of those aged 90 and 95 and older (N=348) in one urban and five rural municipalities in the north of Sweden. MEASUREMENTS: Among others, supine blood pressure, Mini-Mental State Examination, Barthel Index of activities of daily living, Mini Nutritional Assessment, and body mass index. Information on diagnoses, medications, and 4-year mortality was collected. Associations between blood pressure and mortality were investigated using Cox regression analyses, controlling for a number of diagnoses and health factors. RESULTS: Baseline systolic blood pressure (SBP), diastolic blood pressure, and pulse pressure were all inversely associated with mortality within 4 years according to univariate analysis. SBP was the strongest predictor. In Cox regression analyses, low SBP (≤120 mmHg) correlated with greater 4-year all-cause mortality alone and when controlling for health status. This connection persisted after exclusion of deaths within the first year. There was a tendency toward a U-shaped mortality curve for the adjusted model, with SBP of 164.2 mmHg (95% confidence interval=154.1–183.8 mmHg) being associated with the lowest mortality. CONCLUSION: Lower SBP seems to be associated with greater mortality in people aged 85 and older, irrespective of health status. There are indications of a U-shaped correlation between SBP and mortality, and the optimal SBP for this age group could be above 140 mmHg.
Keyword
- blood pressure;hypertension;mortality;oldest-old;Cox models
Publication and Content Type
- ref (subject category)
- art (subject category)
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