Document Detail

Meteorological factors and the onset of hypertensive intracerebral hemorrhage.
MedLine Citation:
PMID:  15257452     Owner:  NLM     Status:  MEDLINE    
There have been numerous studies of the relationship between intracerebral hemorrhage (ICH) and meteorological conditions, but their conclusions have been inconsistent. Poor discrimination of ICH subtypes (primary or secondary) may have obscured the conclusions. Although most studies have analyzed seasonal or monthly variation, daily meteorological data are more appropriate for determining whether weather conditions play a role in triggering the onset of ICH. No studies have examined the activity and location of patients at the time of onset. The aim of this study was to evaluate the relationship between the occurrence of hypertensive ICH and daily meteorological parameters, in addition to examining the effect of the location and activity of the patient at the time of onset. We analyzed 138 patients with severe hypertensive ICH in a hospital-based population. We assessed whether daily meteorological parameters for the days on which ICH occurred differed from the days without ICH onset. Days on which hypertensive ICH occurred had a significantly lower minimum temperature and a decreased minimum temperature from that of the previous day ( P=0.042 [corrected] and 0.012 [corrected] respectively). There were no significant differences among subgroups of patients categorized according to their location and activity at the time of onset for any of the meteorological parameters.
Kazuhiro Ohwaki; Eiji Yano; Hideki Murakami; Hiroshi Nagashima; Tadayoshi Nakagomi
Publication Detail:
Type:  Journal Article     Date:  2004-07-15
Journal Detail:
Title:  International journal of biometeorology     Volume:  49     ISSN:  0020-7128     ISO Abbreviation:  Int J Biometeorol     Publication Date:  2004 Nov 
Date Detail:
Created Date:  2004-11-19     Completed Date:  2005-03-02     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  0374716     Medline TA:  Int J Biometeorol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  86-90     Citation Subset:  IM    
Department of Hygiene and Public Health, Teikyo University School of Medicine, 2-11-1 Kaga Itabashi, 173-8605 Tokyo, Japan.
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MeSH Terms
Aged, 80 and over
Hypertension / complications*
Intracranial Hemorrhages / etiology*
Meteorological Concepts*
Middle Aged
Retrospective Studies
Risk Factors
Erratum In:
Int J Biometeorol. 2004 Nov;49(2):137

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