Document Detail

Deaths from cerebrovascular diseases correlated to month of birth: elevated risk of death from subarachnoid hemorrhage among summer-born.
MedLine Citation:
PMID:  11131289     Owner:  NLM     Status:  MEDLINE    
It has been suggested that maternal nutrition, and fetal and infant growth have an important effect on the risk of cardiovascular disease in adult life. We investigated the population-based distribution of deaths from cerebrovascular diseases (ICD9 codes 430, 431, or 434) in Japan in 1986-1994 as a function of birth month, by examining death-certificate records. For a total of 853 981 people born in the years 1900-1959, the distribution of the number of deaths according to the month of birth was compared with the distribution expected from the monthly numbers of all births for each sex and for the corresponding birth decade. For those born between 1920 and 1949, there were significant discrepancies between the actual numbers of deaths from subarachnoid hemorrhage (ICD9 430) and the numbers expected, and these differences were related to the month of birth. Those born in summer, June-September, consistently had an elevated risk of death, particularly men, where the excess risk was 8%-23%. This tendency was also observed, less distinctly but significantly, for deaths from intracerebral hemorrhage (ICD9 431), but was not observed for those dying from occlusion of the cerebral arteries (ICD9 434). The observation that the risk of dying from subarachnoid hemorrhage was more than 10% higher among those born in the summer implies that at least one in ten deaths from subarachnoid hemorrhage has its origin at a perinatal stage. Although variations in hypertension in later life, which could possibly be "programmed" during the intra-uterine stages, could be an explanation for this observation, the disease-specific nature of the observation suggests the involvement of aneurysm formation, which is a predominant cause of subarachnoid hemorrhage.
K Nonaka; Y Imaizumi
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  International journal of biometeorology     Volume:  44     ISSN:  0020-7128     ISO Abbreviation:  Int J Biometeorol     Publication Date:  2000 Nov 
Date Detail:
Created Date:  2000-12-22     Completed Date:  2001-01-18     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  0374716     Medline TA:  Int J Biometeorol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  182-5     Citation Subset:  IM    
Department of Hygiene, Teikyo University School of Medicine, Tokyo, Japan.
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MeSH Terms
Aged, 80 and over
Cause of Death
Hypertension / complications
Infant, Low Birth Weight*
Infant, Newborn
Intracranial Aneurysm / complications,  etiology
Japan / epidemiology
Middle Aged
Reproductive History*
Risk Factors
Subarachnoid Hemorrhage / etiology,  mortality*

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