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The relationship of fall school opening and emergency department asthma visits in a large metropolitan area.
Arch Pediatr Adolesc Med. 2005 Sep; 159(9):818-23.AP

Abstract

BACKGROUND

Asthma morbidity is seasonal, with the fewest exacerbations occurring in summer and the most exacerbations in early fall.

OBJECTIVE

To determine if the fall increase in pediatric asthma emergency department (ED) visits is related to the school year start.

DESIGN

Time-series study of daily asthma ED visits taken from an administrative claims database for the years 1991 to 2002.

SETTING

Eleven municipal hospitals in New York City, NY. Patients Emergency department visits with asthma as the primary diagnosis among children aged 2 to 4, 5 to 11, and 12 to 17 years and adults with asthma aged 22 to 45 years as comparative group. Main Outcome Measure Rate of asthma ED visits after the September school opening compared with before the opening, during a 60-day window of each year. The delayed effect of school opening was examined by the lagged school-opening indicator for lag 0 through 9 days. The model adjusted for factors that may influence morbidity. There were 86 731 ED visits within the study period.

RESULTS

Asthma ED visits for children aged 5 to 11 years were significantly associated with school opening day, with the highest lagged rate ratio being 1.46 (95% confidence interval [CI], 1.29-1.65). For children aged 2 to 4 years, the highest rate ratio was 1.19 (95% CI, 1.06-1.35), and for children aged 12 to 17 years, the highest lagged rate ratio was 1.13 (95% CI, 0.98-1.31). The rise in adult ED visits following school opening was less substantial, with the highest lagged rate ratio being 1.07 (95% CI, 1.00-1.14).

CONCLUSION

The start of the September school year was associated with increases in pediatric asthma ED visits, particularly among grade school children.

Authors+Show Affiliations

Silverman RA
Department of Emergency Medicine, Long Island Jewish Medical Center, New Hyde Park, NY 11040, USA. aresilv@aol.com
Ito K
No affiliation info available
Stevenson L
No affiliation info available
Hastings HM
No affiliation info available

MeSH

AdolescentAdultAsthmaChildChild, PreschoolEmergency Service, HospitalFemaleHospitals, UrbanHumansMaleMiddle AgedNew York CityRisk FactorsSchoolsSeasonsStudentsTime FactorsUrban Health

Pub Type(s)

Journal Article
Research Support, N.I.H., Extramural
Research Support, U.S. Gov't, P.H.S.

Language

eng

PubMed ID

16143740

Citation

Silverman, Robert A., et al. "The Relationship of Fall School Opening and Emergency Department Asthma Visits in a Large Metropolitan Area." Archives of Pediatrics & Adolescent Medicine, vol. 159, no. 9, 2005, pp. 818-23.
Silverman RA, Ito K, Stevenson L, et al. The relationship of fall school opening and emergency department asthma visits in a large metropolitan area. Arch Pediatr Adolesc Med. 2005;159(9):818-23.
Silverman, R. A., Ito, K., Stevenson, L., & Hastings, H. M. (2005). The relationship of fall school opening and emergency department asthma visits in a large metropolitan area. Archives of Pediatrics & Adolescent Medicine, 159(9), 818-23.
Silverman RA, et al. The Relationship of Fall School Opening and Emergency Department Asthma Visits in a Large Metropolitan Area. Arch Pediatr Adolesc Med. 2005;159(9):818-23. PubMed PMID: 16143740.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - The relationship of fall school opening and emergency department asthma visits in a large metropolitan area. AU - Silverman,Robert A, AU - Ito,Kazuhiko, AU - Stevenson,Lori, AU - Hastings,Harold M, PY - 2005/9/7/pubmed PY - 2005/10/5/medline PY - 2005/9/7/entrez SP - 818 EP - 23 JF - Archives of pediatrics & adolescent medicine JO - Arch Pediatr Adolesc Med VL - 159 IS - 9 N2 - BACKGROUND: Asthma morbidity is seasonal, with the fewest exacerbations occurring in summer and the most exacerbations in early fall. OBJECTIVE: To determine if the fall increase in pediatric asthma emergency department (ED) visits is related to the school year start. DESIGN: Time-series study of daily asthma ED visits taken from an administrative claims database for the years 1991 to 2002. SETTING: Eleven municipal hospitals in New York City, NY. Patients Emergency department visits with asthma as the primary diagnosis among children aged 2 to 4, 5 to 11, and 12 to 17 years and adults with asthma aged 22 to 45 years as comparative group. Main Outcome Measure Rate of asthma ED visits after the September school opening compared with before the opening, during a 60-day window of each year. The delayed effect of school opening was examined by the lagged school-opening indicator for lag 0 through 9 days. The model adjusted for factors that may influence morbidity. There were 86 731 ED visits within the study period. RESULTS: Asthma ED visits for children aged 5 to 11 years were significantly associated with school opening day, with the highest lagged rate ratio being 1.46 (95% confidence interval [CI], 1.29-1.65). For children aged 2 to 4 years, the highest rate ratio was 1.19 (95% CI, 1.06-1.35), and for children aged 12 to 17 years, the highest lagged rate ratio was 1.13 (95% CI, 0.98-1.31). The rise in adult ED visits following school opening was less substantial, with the highest lagged rate ratio being 1.07 (95% CI, 1.00-1.14). CONCLUSION: The start of the September school year was associated with increases in pediatric asthma ED visits, particularly among grade school children. SN - 1072-4710 UR - https://www.unboundmedicine.com/medline/citation/16143740/The_relationship_of_fall_school_opening_and_emergency_department_asthma_visits_in_a_large_metropolitan_area_ DB - PRIME DP - Unbound Medicine ER -