| Relationship between blood pressure and outdoor temperature in a large sample of elderly individuals: the Three-City study. | |
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MedLine Citation:
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PMID: 19139327 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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BACKGROUND: Seasonal variations of blood pressure-related diseases have been described in several populations. However, few studies have examined the seasonal variations of blood pressure in the elderly, a segment of the population particularly exposed to vascular diseases. The association of blood pressure with season and outdoor temperature was examined in 8801 subjects 65 years or older from the Three-City study, a population-based longitudinal study. METHODS: Blood pressure was measured at baseline and 2-year follow-up examinations. Daily outdoor temperature measured at 11 am was provided by the local meteorological offices. RESULTS: Both systolic and diastolic blood pressure values differed significantly across the 4 seasons and across the quintiles of the distribution of outdoor temperature. Systolic blood pressure decreased with increasing temperature, with an 8.0-mm Hg decrease between the lowest (< 7.9 degrees C) and the highest (> or = 21.2 degrees C) temperature quintile. Intraindividual differences in blood pressure between follow-up and baseline examinations were strongly correlated with differences in outdoor temperature. The higher the temperature at follow-up compared with baseline, the greater the decrease in blood pressure. Longitudinal changes in blood pressure according to difference in outdoor temperature were larger in subjects 80 years or older than in younger participants. CONCLUSIONS: Outdoor temperature and blood pressure are strongly correlated in the elderly, especially in those 80 years or older. During periods of extreme temperatures, a careful monitoring of blood pressure and antihypertensive treatment could contribute to reducing the consequences of blood pressure variations in the elderly. |
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Authors:
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Annick Alpérovitch; Jean-Marc Lacombe; Olivier Hanon; Jean-François Dartigues; Karen Ritchie; Pierre Ducimetière; Christophe Tzourio |
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Publication Detail:
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Type: Journal Article; Multicenter Study; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Archives of internal medicine Volume: 169 ISSN: 1538-3679 ISO Abbreviation: Arch. Intern. Med. Publication Date: 2009 Jan |
Date Detail:
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Created Date: 2009-01-13 Completed Date: 2009-01-30 Revised Date: 2009-06-24 |
Medline Journal Info:
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Nlm Unique ID: 0372440 Medline TA: Arch Intern Med Country: United States |
Other Details:
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Languages: eng Pagination: 75-80 Citation Subset: AIM; IM |
Affiliation:
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INSERM U708, Paris Cedex 13, France. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Age Factors Aged, 80 and over Antihypertensive Agents / administration & dosage Blood Pressure / physiology Blood Pressure Determination Cohort Studies Female Geriatric Assessment* Humans Hypertension / drug therapy, physiopathology* Male Probability Prospective Studies Risk Assessment Sampling Studies Seasons* Sensitivity and Specificity Sex Factors Temperature* Urban Population |
| Chemical | |
Reg. No./Substance:
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0/Antihypertensive Agents |
| Comments/Corrections | |
Comment In:
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Arch Intern Med. 2009 Jun 22;169(12):1166-7
[PMID:
19546420
]
Arch Intern Med. 2009 Jun 22;169(12):1167 [PMID: 19546422 ] |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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