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Titolo:
RESPIRATORY-INFECTIONS AND THE AUTUMN INCREASE IN ASTHMA MORBIDITY
Autore:
DALES RE; SCHWEITZER I; TOOGOOD JH; DROUIN M; YANG W; DOLOVICH J; BOULET J;
Indirizzi:
OTTAWA GEN HOSP,DEPT MED,501 SMYTH RD OTTAWA ON K1H 8L6 CANADA UNIV OTTAWA OTTAWA ON CANADA UNIV WESTERN ONTARIO LONDON ON N6A 3K7 CANADA MCMASTER UNIV HAMILTON ON L8S 4L8 CANADA
Titolo Testata:
The European respiratory journal
fascicolo: 1, volume: 9, anno: 1996,
pagine: 72 - 77
SICI:
0903-1936(1996)9:1<72:RATAII>2.0.ZU;2-Z
Fonte:
ISI
Lingua:
ENG
Soggetto:
SEASONAL-VARIATION; CHILDHOOD ASTHMA; ADMISSION RATES; ORLEANS ASTHMA; SYMPTOMS; POLLEN; PRECIPITANTS; OUTBREAKS; MORTALITY; VIRUSES;
Keywords:
AIR POLLUTION; ASTHMA; ENVIRONMENT; FUNGI; INFECTION;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
38
Recensione:
Indirizzi per estratti:
Citazione:
R.E. Dales et al., "RESPIRATORY-INFECTIONS AND THE AUTUMN INCREASE IN ASTHMA MORBIDITY", The European respiratory journal, 9(1), 1996, pp. 72-77

Abstract

Unexplained autumn increases in hospital admissions for asthma have been reported in many countries, including the United States, Canada, England and Wales.To investigate the role of infection, the associationwas tested between hospital admissions for asthma and respiratory infections among preschool children in Metropolitan Toronto, Canada during the period 1981 to 1989, The seasonal pattern in overall hospital utilization was assessed by admissions for nonrespiratory diseases, Timeseries analysis was used to remove potentially confounding temporal trends and the influence of correlated errors. A fourfold increase in asthma admissions occurred between July and October unaccompanied by similar increases in nonrespiratory admissions, Admissions began increasing during the third week of August, peaked during the third week in September, and slowly decreased during November and December, After adjusting for serial correlation, trends, climate, ambient air pollution and aeroallergens, the seasonal pattern of respiratory infection explained 14% of the variance in asthma admissions. Based on seasonal patterns, respiratory infection is the major identifiable risk factor for the large autumnal increase in asthma admissions.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 22/10/20 alle ore 12:27:29