Titre :
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Association of normal weather periods and El Nino events with hospitalization for viral pneumonia in females : California, 1983-1998. (2001)
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Auteurs :
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Kristie-L EBI ;
K. ALEX EXUZIDES ;
Anthony BARNSTON ;
Michael KELSH ;
Edmund LAU ;
The Ex ponent Health Group. Menlo Park. CA. USA
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Type de document :
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Article
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Dans :
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American journal of public health (vol. 91, n° 8, 2001)
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Pagination :
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1200-1208
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Langues:
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Anglais
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Mots-clés :
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Hospitalisation
;
Pneumonie
;
Virose
;
Infection
;
Femme
;
Homme
;
Etats Unis
;
Amérique
;
Epidémiologie
;
Précipitation
;
Variation saisonnière
;
Appareil respiratoire [pathologie]
;
Amérique du Nord
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Résumé :
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[BDSP. Notice produite par INIST-CNRS rR0xu2Z0. Diffusion soumise à autorisation]. Objectives. This study examined associations between weather and hospitalizations of females for viral pneumonia during normal weather periods and El Nino events in the California counties of Sacramento and Yolo, San Francisco and San Mateo, and Los Angeles and Orange. Methods. Associations between weather and hospitalizations (lagged 7 days) for January 1983 through June 1998 were evaluated with Poisson regression models. Generalized estimating equations were used to adjust for autocorrelation and overdispersion. Data were summed over 4 days. Results. Associations varied by region. Hospitalizations in San Francisco and Los Angeles increased significantly (30% - 50%) with a 5°F decrease in minimum temperature. Hospitalizations in Sacramento increased significantly (25% - 40%) with a 5°F decrease in maximum temperature difference. The associations were independent of season. El Nino events were associated with hospitalizations only in Sacramento, with significant decreases for girls and increases for women. Conclusions. The results suggest that viral pneumonia could continue to be a major public health issue, with a significant association between weather and hospitalizations, even as the global mean temperature continues to rise. An understanding of population sensitivity under different weather conditions could lead to an improved understanding of virus transmission.
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