-transparent.png){kind=logo}
BACKGROUND Reunion Island is a French overseas department characterized by a tropical climate with 2 distinct seasons. While the prevalence of asthma among adults in Reunion Island is close to that in mainland France, mortality and hospitalization rates are twice as high. To date, however, no epidemiological studies have evaluated the influence of environmental factors in asthma exacerbations in Reunion Island. METHODS From January 2010 to June 2013, 1157 residents of Saint-Denis visited the emergency rooms of the Centre hospitalier universitaire site Nord de Saint-Denis for asthma. After exclusion of children under the age of 3, 864 visits were analyzed. These were correlated with the following daily factors: pollens and molds, meteorological parameters (temperature, precipitation levels, humidity and relative humidity levels, wind), pollutants (sulfur dioxide (SO2), nitrogen oxide (NOx), and the fine particles PM10 and PM2.5), and the influenza virus. The correlation between these factors was evaluated using the DLNM and GO-GARCH models. RESULTS Of the 864 analyzed visits, 532 were by pediatric patients (aged 3 to 16 years) and 332 by adult patients (aged over 16 years). In adults, pollens positively correlated with asthma exacerbations were Urticaceae, Oleaceae, Moraceae, and Chenopodiaceae. In children, these were Urticaceae, Oleaceae, Poaceae, and Myrtaceae. Molds positively correlated with asthma exacerbations in adults were ascospores and basidiospores. Only basidiospores were positively correlated with exacerbations in children. Temperature was positively correlated with exacerbations in both adults and children. The pollutants PM10 and NOx were positively correlated with exacerbations in children. Influenza epidemics were strongly correlated with exacerbations in both adults and children. CONCLUSIONS Our analysis shows that in Reunion Island, asthma is exacerbated by pollens (Urticaceae, Oleaceae, Moraceae, Chenopodiaceae in adults; Urticaceae, Oleaceae, Poaceae, Myrtaceae in children), molds (ascospores and basidiospores in adults; basidiospores in children), temperature, influenza, and the pollutants PM10 and NOx (in children).
N Chane-Si-Ken, and
N Allou, and
S Bénéteau, and
M Verduyn, and
V Gazaille, and
C Raherison, and
M André
May 2022,
Infectious diseases now,
N Chane-Si-Ken, and
N Allou, and
S Bénéteau, and
M Verduyn, and
V Gazaille, and
C Raherison, and
M André
January 1993,
The Journal of asthma : official journal of the Association for the Care of Asthma,
N Chane-Si-Ken, and
N Allou, and
S Bénéteau, and
M Verduyn, and
V Gazaille, and
C Raherison, and
M André
February 2003,
Revue de l'infirmiere,
N Chane-Si-Ken, and
N Allou, and
S Bénéteau, and
M Verduyn, and
V Gazaille, and
C Raherison, and
M André
May 2019,
BMC public health,
N Chane-Si-Ken, and
N Allou, and
S Bénéteau, and
M Verduyn, and
V Gazaille, and
C Raherison, and
M André
November 2007,
Diabetes & metabolism,
N Chane-Si-Ken, and
N Allou, and
S Bénéteau, and
M Verduyn, and
V Gazaille, and
C Raherison, and
M André
November 2005,
Journal de gynecologie, obstetrique et biologie de la reproduction,
N Chane-Si-Ken, and
N Allou, and
S Bénéteau, and
M Verduyn, and
V Gazaille, and
C Raherison, and
M André
June 2015,
Clinical and experimental allergy : journal of the British Society for Allergy and Clinical Immunology,
N Chane-Si-Ken, and
N Allou, and
S Bénéteau, and
M Verduyn, and
V Gazaille, and
C Raherison, and
M André
September 2015,
Clinical and experimental allergy : journal of the British Society for Allergy and Clinical Immunology,
N Chane-Si-Ken, and
N Allou, and
S Bénéteau, and
M Verduyn, and
V Gazaille, and
C Raherison, and
M André
November 2016,
Allergy, asthma & immunology research,
N Chane-Si-Ken, and
N Allou, and
S Bénéteau, and
M Verduyn, and
V Gazaille, and
C Raherison, and
M André
October 2011,
Revue des maladies respiratoires,
